1974 (szám)

1974
(ezerkilencszázhetvennégy)
… 1971 1972 1973 « 1974 » 1975 1976 1977 …
Tulajdonságok
Normálalak1,974·103
Kanonikus alak21 · 31 · 71 · 471
Osztók1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 141, 282, 329, 658, 987, 1974
Római számmalMCMLXXIV
Számrendszerek
Bináris alak1111011011102
Oktális alak36668
Hexadecimális alak7B616
Számelméleti függvények értékei
Euler-függvény552
Möbius-függvény1
Mertens-függvény5
Osztók száma16
Osztók összege4608
bővelkedő szám
Valódiosztó-összeg2633

Az 1974 (római számmal: MCMLXXIV) az 1973 és 1975 között található természetes szám.

A matematikában

A tízes számrendszerbeli 1974-es a kettes számrendszerben 11110110110, a nyolcas számrendszerben 3666, a tizenhatos számrendszerben 7B6 alakban írható fel.

Az 1974 páros szám, összetett szám. Kanonikus alakja 21 · 31 · 71 · 471, normálalakban az 1,974 · 103 szorzattal írható fel. Tizenhat osztója van a természetes számok halmazán, ezek növekvő sorrendben: 1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 141, 282, 329, 658, 987 és 1974.

Az 1974 egyetlen szám valódiosztóösszeg-függvényeként áll elő, ez az 1973².[1]

Jegyzetek

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