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28572714612 = 223213107570587
BaseRepresentation
bin11010100111000100…
…010000011001110100
32201202021121021220100
4122213010100121310
5432004103331422
621043124234100
72031026031651
oct324704203164
981667537810
1028572714612
1111132609432
125654b3b930
132904782130
141550a72c28
15b236947ac
hex6a7110674

28572714612 has 72 divisors (see below), whose sum is σ = 78508344096. Its totient is φ = 8709424704.

The previous prime is 28572714607. The next prime is 28572714617. The reversal of 28572714612 is 21641727582.

28572714612 is a `hidden beast` number, since 2 + 8 + 5 + 7 + 27 + 1 + 4 + 612 = 666.

It is an interprime number because it is at equal distance from previous prime (28572714607) and next prime (28572714617).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28572714617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235218 + ... + 335369.

It is an arithmetic number, because the mean of its divisors is an integer number (1090393668).

Almost surely, 228572714612 is an apocalyptic number.

It is an amenable number.

28572714612 is an abundant number, since it is smaller than the sum of its proper divisors (49935629484).

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

28572714612 is a wasteful number, since it uses less digits than its factorization.

28572714612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570717 (or 570712 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The spelling of 28572714612 in words is "twenty-eight billion, five hundred seventy-two million, seven hundred fourteen thousand, six hundred twelve".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 107 117 156 214 234 321 428 468 642 963 1284 1391 1926 2782 3852 4173 5564 8346 12519 16692 25038 50076 570587 1141174 1711761 2282348 3423522 5135283 6847044 7417631 10270566 14835262 20541132 22252893 29670524 44505786 61052809 66758679 89011572 122105618 133517358 183158427 244211236 267034716 366316854 549475281 732633708 793686517 1098950562 1587373034 2197901124 2381059551 3174746068 4762119102 7143178653 9524238204 14286357306 28572714612