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9964075890 = 235643516541
BaseRepresentation
bin10010100011110011…
…11011101101110010
3221201102011111111210
421101321323231302
5130401300412030
64324420420550
7501630150636
oct112171735562
927642144453
109964075890
11425350876a
121b20b47756
13c2a41cbc2
146a7490dc6
153d4b63bb0
hex251e7bb72

9964075890 has 32 divisors (see below), whose sum is σ = 23951019456. Its totient is φ = 2652949440.

The previous prime is 9964075879. The next prime is 9964075907. The reversal of 9964075890 is 985704699.

It is a self number, because there is not a number n which added to its sum of digits gives 9964075890.

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, 238981 + ... + 277560.

It is an arithmetic number, because the mean of its divisors is an integer number (748469358).

Almost surely, 29964075890 is an apocalyptic number.

9964075890 is an abundant number, since it is smaller than the sum of its proper divisors (13986943566).

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

9964075890 is a wasteful number, since it uses less digits than its factorization.

9964075890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517194.

The product of its (nonzero) digits is 4898880, while the sum is 57.

The square root of 9964075890 is about 99820.2178418781. The cubic root of 9964075890 is about 2151.8517229053.

The spelling of 9964075890 in words is "nine billion, nine hundred sixty-four million, seventy-five thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 643 1286 1929 3215 3858 6430 9645 19290 516541 1033082 1549623 2582705 3099246 5165410 7748115 15496230 332135863 664271726 996407589 1660679315 1992815178 3321358630 4982037945 9964075890