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25201761996 = 223171011223149
BaseRepresentation
bin10111011110001001…
…000101111011001100
32102001100120011020110
4113132021011323030
5403103122340441
615324425120020
71551344304525
oct273611057314
972040504213
1025201761996
11a762812884
124a74029010
1324b8289808
1413110a784c
159c7778b16
hex5de245ecc

25201761996 has 48 divisors (see below), whose sum is σ = 62879695200. Its totient is φ = 7828147200.

The previous prime is 25201761929. The next prime is 25201761997. The reversal of 25201761996 is 69916710252.

It is not an unprimeable number, because it can be changed into a prime (25201761997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 590971 + ... + 632178.

It is an arithmetic number, because the mean of its divisors is an integer number (1309993650).

Almost surely, 225201761996 is an apocalyptic number.

It is an amenable number.

25201761996 is an abundant number, since it is smaller than the sum of its proper divisors (37677933204).

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

25201761996 is a wasteful number, since it uses less digits than its factorization.

25201761996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223274 (or 1223272 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The spelling of 25201761996 in words is "twenty-five billion, two hundred one million, seven hundred sixty-one thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 12 17 34 51 68 101 102 202 204 303 404 606 1212 1717 3434 5151 6868 10302 20604 1223149 2446298 3669447 4892596 7338894 14677788 20793533 41587066 62380599 83174132 123538049 124761198 247076098 249522396 370614147 494152196 741228294 1482456588 2100146833 4200293666 6300440499 8400587332 12600880998 25201761996