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70109956 = 2272503927
BaseRepresentation
bin1000010110111…
…00101100000100
311212220221210001
410023130230010
5120422004311
610542411044
71510632130
oct413345404
9155827701
1070109956
1136636714
121b590a84
13116a98a7
1494503c0
15624d4c1
hex42dcb04

70109956 has 12 divisors (see below), whose sum is σ = 140219968. Its totient is φ = 30047112.

The previous prime is 70109927. The next prime is 70109971. The reversal of 70109956 is 65990107.

70109956 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251936 + ... + 1251991.

Almost surely, 270109956 is an apocalyptic number.

It is an amenable number.

70109956 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

70109956 is a wasteful number, since it uses less digits than its factorization.

70109956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503938 (or 2503936 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 70109956 is about 8373.1688147320. The cubic root of 70109956 is about 412.3442075897.

The spelling of 70109956 in words is "seventy million, one hundred nine thousand, nine hundred fifty-six".

Divisors: 1 2 4 7 14 28 2503927 5007854 10015708 17527489 35054978 70109956