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689125700904 = 23383345946637
BaseRepresentation
bin10100000011100110001…
…01111011010100101000
32102212202100120202201120
422001303011323110220
542242312134412104
61244325135215240
7100534114544424
oct12016305732450
92385670522646
10689125700904
11246290546853
12b1682977520
134cca45b4334
14254d4dd5b84
1512dd4597cd9
hexa07317b528

689125700904 has 32 divisors (see below), whose sum is σ = 1743571055520. Its totient is φ = 226940993216.

The previous prime is 689125700899. The next prime is 689125700917. The reversal of 689125700904 is 409007521986.

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, 172971327 + ... + 172975310.

It is an arithmetic number, because the mean of its divisors is an integer number (54486595485).

Almost surely, 2689125700904 is an apocalyptic number.

It is an amenable number.

689125700904 is an abundant number, since it is smaller than the sum of its proper divisors (1054445354616).

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

689125700904 is a wasteful number, since it uses less digits than its factorization.

689125700904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345946729 (or 345946725 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 689125700904 in words is "six hundred eighty-nine billion, one hundred twenty-five million, seven hundred thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 12 24 83 166 249 332 498 664 996 1992 345946637 691893274 1037839911 1383786548 2075679822 2767573096 4151359644 8302719288 28713570871 57427141742 86140712613 114854283484 172281425226 229708566968 344562850452 689125700904