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42912918111 = 3723112774149
BaseRepresentation
bin100111111101110011…
…110010101001011111
311002202200020002221110
4213331303302221133
51200341201334421
631414112433103
73046264533300
oct477563625137
9132680202843
1042912918111
1117221250588
128397548793
13407b6c714b
1421113c67a7
1511b25c8a76
hex9fdcf2a5f

42912918111 has 48 divisors (see below), whose sum is σ = 69247795200. Its totient is φ = 23543472960.

The previous prime is 42912918109. The next prime is 42912918157. The reversal of 42912918111 is 11181921924.

It is not a de Polignac number, because 42912918111 - 21 = 42912918109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42912918111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42912918011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 541665 + ... + 615813.

It is an arithmetic number, because the mean of its divisors is an integer number (1442662400).

Almost surely, 242912918111 is an apocalyptic number.

42912918111 is a deficient number, since it is larger than the sum of its proper divisors (26334877089).

42912918111 is a wasteful number, since it uses less digits than its factorization.

42912918111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74324 (or 74317 counting only the distinct ones).

The product of its digits is 10368, while the sum is 39.

The spelling of 42912918111 in words is "forty-two billion, nine hundred twelve million, nine hundred eighteen thousand, one hundred eleven".

Divisors: 1 3 7 21 31 49 93 127 147 217 381 651 889 1519 2667 3937 4557 6223 11811 18669 27559 74149 82677 192913 222447 519043 578739 1557129 2298619 3633301 6895857 9416923 10899903 16090333 28250769 48270999 65918461 112632331 197755383 291924613 337896993 461429227 875773839 1384287681 2043472291 6130416873 14304306037 42912918111