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25688275116 = 22373150919381
BaseRepresentation
bin10111111011001000…
…111111100010101100
32110022021000120202220
4113323020333202230
5410102144300431
615445004515340
71566402510240
oct277310774254
973267016686
1025688275116
11a9923a8339
124b8ab4bb50
132564ccbbba
14135994c420
15a0532ab96
hex5fb23f8ac

25688275116 has 96 divisors (see below), whose sum is σ = 70854389760. Its totient is φ = 7088428800.

The previous prime is 25688275049. The next prime is 25688275211. The reversal of 25688275116 is 61157288652.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1315746 + ... + 1335126.

It is an arithmetic number, because the mean of its divisors is an integer number (738066560).

Almost surely, 225688275116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25688275116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35427194880).

25688275116 is an abundant number, since it is smaller than the sum of its proper divisors (45166114644).

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

25688275116 is a wasteful number, since it uses less digits than its factorization.

25688275116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19935 (or 19933 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 51.

The spelling of 25688275116 in words is "twenty-five billion, six hundred eighty-eight million, two hundred seventy-five thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 7 12 14 21 28 31 42 62 84 93 124 186 217 372 434 509 651 868 1018 1302 1527 2036 2604 3054 3563 6108 7126 10689 14252 15779 19381 21378 31558 38762 42756 47337 58143 63116 77524 94674 110453 116286 135667 189348 220906 232572 271334 331359 407001 441812 542668 600811 662718 814002 1201622 1325436 1628004 1802433 2403244 3604866 4205677 7209732 8411354 9864929 12617031 16822708 19729858 25234062 29594787 39459716 50468124 59189574 69054503 118379148 138109006 207163509 276218012 305812799 414327018 611625598 828654036 917438397 1223251196 1834876794 2140689593 3669753588 4281379186 6422068779 8562758372 12844137558 25688275116