Base | Representation |
---|---|
bin | 100111111101110011… |
… | …110010101001011111 |
3 | 11002202200020002221110 |
4 | 213331303302221133 |
5 | 1200341201334421 |
6 | 31414112433103 |
7 | 3046264533300 |
oct | 477563625137 |
9 | 132680202843 |
10 | 42912918111 |
11 | 17221250588 |
12 | 8397548793 |
13 | 407b6c714b |
14 | 21113c67a7 |
15 | 11b25c8a76 |
hex | 9fdcf2a5f |
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".
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