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28613536692 = 22313261231299
BaseRepresentation
bin11010101001011111…
…111110101110110100
32201212010102021021020
4122221133332232310
5432100031133232
621051143221140
72032033022526
oct325137765664
981763367236
1028613536692
1111153660694
1256667477b0
132910075c00
14155625ba16
15b27059e2c
hex6a97febb4

28613536692 has 72 divisors (see below), whose sum is σ = 73481234400. Its totient is φ = 8659797120.

The previous prime is 28613536667. The next prime is 28613536709. The reversal of 28613536692 is 29663531682.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8059 + ... + 239357.

It is an arithmetic number, because the mean of its divisors is an integer number (1020572700).

Almost surely, 228613536692 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 28613536692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36740617200).

28613536692 is an abundant number, since it is smaller than the sum of its proper divisors (44867697708).

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

28613536692 is a wasteful number, since it uses less digits than its factorization.

28613536692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231393 (or 231378 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 51.

The spelling of 28613536692 in words is "twenty-eight billion, six hundred thirteen million, five hundred thirty-six thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 61 78 122 156 169 183 244 338 366 507 676 732 793 1014 1586 2028 2379 3172 4758 9516 10309 20618 30927 41236 61854 123708 231299 462598 693897 925196 1387794 2775588 3006887 6013774 9020661 12027548 14109239 18041322 28218478 36082644 39089531 42327717 56436956 78179062 84655434 117268593 156358124 169310868 183420107 234537186 366840214 469074372 550260321 733680428 1100520642 2201041284 2384461391 4768922782 7153384173 9537845564 14306768346 28613536692