Base | Representation |
---|---|
bin | 100111001001010000… |
… | …010001100110000111 |
3 | 11000111020002210201200 |
4 | 213021100101212013 |
5 | 1142034441124310 |
6 | 31150414153543 |
7 | 3015400145460 |
oct | 471120214607 |
9 | 130436083650 |
10 | 42031192455 |
11 | 1690956aa9a |
12 | 81901b28b3 |
13 | 3c6ab2b5a5 |
14 | 206a265d67 |
15 | 115eeab9c0 |
hex | 9c9411987 |
42031192455 has 24 divisors (see below), whose sum is σ = 83261791392. Its totient is φ = 19214259264.
The previous prime is 42031192453. The next prime is 42031192501. The reversal of 42031192455 is 55429113024.
42031192455 is a `hidden beast` number, since 420 + 3 + 1 + 192 + 45 + 5 = 666.
It is not a de Polignac number, because 42031192455 - 21 = 42031192453 is a prime.
It is a super-2 number, since 2×420311924552 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42031192453) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66715864 + ... + 66716493.
It is an arithmetic number, because the mean of its divisors is an integer number (3469241308).
Almost surely, 242031192455 is an apocalyptic number.
42031192455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.
42031192455 is a deficient number, since it is larger than the sum of its proper divisors (41230598937).
42031192455 is a wasteful number, since it uses less digits than its factorization.
42031192455 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 133432375 (or 133432372 counting only the distinct ones).
The product of its (nonzero) digits is 43200, while the sum is 36.
The spelling of 42031192455 in words is "forty-two billion, thirty-one million, one hundred ninety-two thousand, four hundred fifty-five".
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