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42312720670 = 2511555769221
BaseRepresentation
bin100111011010000010…
…001110000100011110
311001012211211220211121
4213122002032010132
51143124024030140
631234352241154
73025356122443
oct473202160436
9131184756747
1042312720670
1116a43478340
12824a5401ba
133cb425c72c
1420957cb9ca
151179a6c64a
hex9da08e11e

42312720670 has 32 divisors (see below), whose sum is σ = 83102949216. Its totient is φ = 15383452800.

The previous prime is 42312720647. The next prime is 42312720721. The reversal of 42312720670 is 7602721324.

It is a congruent number.

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, 576660 + ... + 645880.

It is an arithmetic number, because the mean of its divisors is an integer number (2596967163).

Almost surely, 242312720670 is an apocalyptic number.

42312720670 is a deficient number, since it is larger than the sum of its proper divisors (40790228546).

42312720670 is a wasteful number, since it uses less digits than its factorization.

42312720670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74796.

The product of its (nonzero) digits is 28224, while the sum is 34.

The spelling of 42312720670 in words is "forty-two billion, three hundred twelve million, seven hundred twenty thousand, six hundred seventy".

Divisors: 1 2 5 10 11 22 55 110 5557 11114 27785 55570 61127 69221 122254 138442 305635 346105 611270 692210 761431 1522862 3807155 7614310 384661097 769322194 1923305485 3846610970 4231272067 8462544134 21156360335 42312720670