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28712613674 = 27913910191283
BaseRepresentation
bin11010101111011001…
…111011011100101010
32202010000211220100002
4122233121323130222
5432300412114144
621105042543002
72034345121643
oct325731733452
982100756302
1028712613674
11111a4581698
125693967a62
132927755544
14156548c6ca
15b30acb14e
hex6af67b72a

28712613674 has 32 divisors (see below), whose sum is σ = 44005248000. Its totient is φ = 14047838064.

The previous prime is 28712613659. The next prime is 28712613739. The reversal of 28712613674 is 47631621782.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22378637 + ... + 22379919.

It is an arithmetic number, because the mean of its divisors is an integer number (1375164000).

Almost surely, 228712613674 is an apocalyptic number.

28712613674 is a deficient number, since it is larger than the sum of its proper divisors (15292634326).

28712613674 is a wasteful number, since it uses less digits than its factorization.

28712613674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522.

The product of its digits is 677376, while the sum is 47.

The spelling of 28712613674 in words is "twenty-eight billion, seven hundred twelve million, six hundred thirteen thousand, six hundred seventy-four".

Divisors: 1 2 79 139 158 278 1019 1283 2038 2566 10981 21962 80501 101357 141641 161002 178337 202714 283282 356674 1307377 2614754 11189639 14088623 22379278 28177246 103282783 181725403 206565566 363450806 14356306837 28712613674