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389982083852052 = 223210832835662557
BaseRepresentation
bin101100010101011111100011…
…1100100111010011100010100
31220010210220220221122020200100
41120222333013210322130110
5402103431301431231202
63501231143540414100
7145100163405441366
oct13052770744723424
91803726827566610
10389982083852052
1110329552258253a
12378a51829a7330
131397b1ca670773
146c4333acb8d36
1530144e039741c
hex162afc793a714

389982083852052 has 18 divisors (see below), whose sum is σ = 985788045292778. Its totient is φ = 129994027950672.

The previous prime is 389982083852033. The next prime is 389982083852063. The reversal of 389982083852052 is 250258380289983.

389982083852052 is a `hidden beast` number, since 3 + 8 + 9 + 98 + 2 + 0 + 8 + 3 + 8 + 520 + 5 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 384465663977616 + 5516419874436 = 19607796^2 + 2348706^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×3899820838520522 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5416417831243 + ... + 5416417831314.

Almost surely, 2389982083852052 is an apocalyptic number.

It is an amenable number.

389982083852052 is an abundant number, since it is smaller than the sum of its proper divisors (595805961440726).

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

389982083852052 is a wasteful number, since it uses less digits than its factorization.

389982083852052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10832835662567 (or 10832835662562 counting only the distinct ones).

The product of its (nonzero) digits is 597196800, while the sum is 72.

The spelling of 389982083852052 in words is "three hundred eighty-nine trillion, nine hundred eighty-two billion, eighty-three million, eight hundred fifty-two thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 10832835662557 21665671325114 32498506987671 43331342650228 64997013975342 97495520963013 129994027950684 194991041926026 389982083852052