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42305875887 = 31137239144973
BaseRepresentation
bin100111011001101000…
…000110111110101111
311001012100222011120010
4213121220012332233
51143120301012022
631233545424303
73025244004012
oct473150067657
9131170864503
1042305875887
1116a3a6227a0
12824819b093
133cb2a04072
142094929379
15117916950c
hex9d9a06faf

42305875887 has 32 divisors (see below), whose sum is σ = 63463818240. Its totient is φ = 24842401920.

The previous prime is 42305875873. The next prime is 42305875949. The reversal of 42305875887 is 78857850324.

It is not a de Polignac number, because 42305875887 - 26 = 42305875823 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42305875847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219333 + ... + 364305.

It is an arithmetic number, because the mean of its divisors is an integer number (1983244320).

Almost surely, 242305875887 is an apocalyptic number.

42305875887 is a deficient number, since it is larger than the sum of its proper divisors (21157942353).

42305875887 is a wasteful number, since it uses less digits than its factorization.

42305875887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145263.

The product of its (nonzero) digits is 15052800, while the sum is 57.

The spelling of 42305875887 in words is "forty-two billion, three hundred five million, eight hundred seventy-five thousand, eight hundred eighty-seven".

Divisors: 1 3 11 33 37 111 239 407 717 1221 2629 7887 8843 26529 97273 144973 291819 434919 1594703 4784109 5364001 16092003 34648547 59004011 103945641 177012033 381134017 1143402051 1281996239 3845988717 14101958629 42305875887