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70830956 = 22719712841
BaseRepresentation
bin1000011100011…
…00101101101100
311221021120210202
410032030231230
5121113042311
611010053032
71520024150
oct416145554
9157246722
1070830956
1136a89389
121b87a178
131189cb11
14959b060
156341e3b
hex438cb6c

70830956 has 24 divisors (see below), whose sum is σ = 142392096. Its totient is φ = 30199680.

The previous prime is 70830953. The next prime is 70830967. The reversal of 70830956 is 65903807.

It is not an unprimeable number, because it can be changed into a prime (70830953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905 + ... + 11936.

It is an arithmetic number, because the mean of its divisors is an integer number (5933004).

Almost surely, 270830956 is an apocalyptic number.

It is an amenable number.

70830956 is an abundant number, since it is smaller than the sum of its proper divisors (71561140).

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

70830956 is a wasteful number, since it uses less digits than its factorization.

70830956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13049 (or 13047 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 70830956 is about 8416.1128794711. The cubic root of 70830956 is about 413.7528844917.

The spelling of 70830956 in words is "seventy million, eight hundred thirty thousand, nine hundred fifty-six".

Divisors: 1 2 4 7 14 28 197 394 788 1379 2758 5516 12841 25682 51364 89887 179774 359548 2529677 5059354 10118708 17707739 35415478 70830956