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869974479968 = 25113853641453
BaseRepresentation
bin11001010100011101000…
…01010001010001100000
310002011120000110121221212
430222032201101101200
5103223201431324333
61503354420205252
7116565531032156
oct14521641212140
93064500417855
10869974479968
11305a54a06230
12120734839828
136406602a1c9
143016d8173d6
151796b561448
hexca8e851460

869974479968 has 48 divisors (see below), whose sum is σ = 1868955769296. Its totient is φ = 395339696640.

The previous prime is 869974479943. The next prime is 869974479991.

869974479968 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 869974479968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1035530 + ... + 1676982.

It is an arithmetic number, because the mean of its divisors is an integer number (38936578527).

Almost surely, 2869974479968 is an apocalyptic number.

869974479968 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

869974479968 is an abundant number, since it is smaller than the sum of its proper divisors (998981289328).

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

869974479968 is a wasteful number, since it uses less digits than its factorization.

869974479968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645327 (or 645319 counting only the distinct ones).

The product of its digits is 11851370496, while the sum is 86.

The spelling of 869974479968 in words is "eight hundred sixty-nine billion, nine hundred seventy-four million, four hundred seventy-nine thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 3853 7706 15412 30824 42383 61648 84766 123296 169532 339064 641453 678128 1282906 1356256 2565812 5131624 7055983 10263248 14111966 20526496 28223932 56447864 112895728 225791456 2471518409 4943036818 9886073636 19772147272 27186702499 39544294544 54373404998 79088589088 108746809996 217493619992 434987239984 869974479968