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70750660 = 22537671427
BaseRepresentation
bin1000011011110…
…01000111000100
311221010111122211
410031321013010
5121103010120
611004233204
71516241101
oct415710704
9157114584
1070750660
1136a34022
121b83b804
13118723c6
149579aa8
15632825a
hex43791c4

70750660 has 48 divisors (see below), whose sum is σ = 154977984. Its totient is φ = 27105408.

The previous prime is 70750657. The next prime is 70750681. The reversal of 70750660 is 6605707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48867 + ... + 50293.

It is an arithmetic number, because the mean of its divisors is an integer number (3228708).

Almost surely, 270750660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70750660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77488992).

70750660 is an abundant number, since it is smaller than the sum of its proper divisors (84227324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70750660 is a wasteful number, since it uses less digits than its factorization.

70750660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 70750660 is about 8411.3411534666. The cubic root of 70750660 is about 413.5964780019.

The spelling of 70750660 in words is "seventy million, seven hundred fifty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 37 67 74 134 148 185 268 335 370 670 740 1340 1427 2479 2854 4958 5708 7135 9916 12395 14270 24790 28540 49580 52799 95609 105598 191218 211196 263995 382436 478045 527990 956090 1055980 1912180 3537533 7075066 14150132 17687665 35375330 70750660