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17913105952 = 25779969223
BaseRepresentation
bin10000101011101101…
…000100111000100000
31201020101200001210121
4100223231010320200
5243141223342302
612121300010024
71202621613460
oct205355047040
951211601717
1017913105952
1176625326a5
12357b090914
1318c62282a1
14c1d08bba0
156ec941e37
hex42bb44e20

17913105952 has 24 divisors (see below), whose sum is σ = 40304488896. Its totient is φ = 7677045312.

The previous prime is 17913105941. The next prime is 17913105953. The reversal of 17913105952 is 25950131971.

It is a junction number, because it is equal to n+sod(n) for n = 17913105899 and 17913105908.

It is not an unprimeable number, because it can be changed into a prime (17913105953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39984388 + ... + 39984835.

It is an arithmetic number, because the mean of its divisors is an integer number (1679353704).

Almost surely, 217913105952 is an apocalyptic number.

It is an amenable number.

17913105952 is an abundant number, since it is smaller than the sum of its proper divisors (22391382944).

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

17913105952 is an equidigital number, since it uses as much as digits as its factorization.

17913105952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79969240 (or 79969232 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 43.

The spelling of 17913105952 in words is "seventeen billion, nine hundred thirteen million, one hundred five thousand, nine hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 79969223 159938446 319876892 559784561 639753784 1119569122 1279507568 2239138244 2559015136 4478276488 8956552976 17913105952