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25710128228 = 22172011188011
BaseRepresentation
bin10111111100011100…
…010110110001100100
32110100210010211121102
4113330130112301210
5410123243100403
615451105135232
71600056325031
oct277434266144
973323124542
1025710128228
11a9a3773964
124b9632a518
1325696b0935
14135c7da388
15a071e5b88
hex5fc716c64

25710128228 has 24 divisors (see below), whose sum is σ = 47663298144. Its totient is φ = 12092803200.

The previous prime is 25710128207. The next prime is 25710128231. The reversal of 25710128228 is 82282101752.

It is a super-2 number, since 2×257101282282 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25710128191 and 25710128200.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 42743 + ... + 230753.

It is an arithmetic number, because the mean of its divisors is an integer number (1985970756).

Almost surely, 225710128228 is an apocalyptic number.

It is an amenable number.

25710128228 is a deficient number, since it is larger than the sum of its proper divisors (21953169916).

25710128228 is a wasteful number, since it uses less digits than its factorization.

25710128228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190043 (or 190041 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 38.

The spelling of 25710128228 in words is "twenty-five billion, seven hundred ten million, one hundred twenty-eight thousand, two hundred twenty-eight".

Divisors: 1 2 4 17 34 68 2011 4022 8044 34187 68374 136748 188011 376022 752044 3196187 6392374 12784748 378090121 756180242 1512360484 6427532057 12855064114 25710128228