Base | Representation |
---|---|
bin | 111101001101111100… |
… | …0100011011110000001 |
3 | 110120022222022001000201 |
4 | 1322123320203132001 |
5 | 4123214331001310 |
6 | 140221024245201 |
7 | 12332544135415 |
oct | 1723370433601 |
9 | 416288261021 |
10 | 131464312705 |
11 | 508321a4a20 |
12 | 2158b170801 |
13 | c52138025b |
14 | 6511b5cd45 |
15 | 36466ade3a |
hex | 1e9be23781 |
131464312705 has 32 divisors (see below), whose sum is σ = 182349999360. Its totient is φ = 89923153920.
The previous prime is 131464312703. The next prime is 131464312723. The reversal of 131464312705 is 507213464131.
It is a happy number.
It is not a de Polignac number, because 131464312705 - 21 = 131464312703 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131464312703) 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, 1304361 + ... + 1401529.
It is an arithmetic number, because the mean of its divisors is an integer number (5698437480).
Almost surely, 2131464312705 is an apocalyptic number.
It is an amenable number.
131464312705 is a deficient number, since it is larger than the sum of its proper divisors (50885686655).
131464312705 is a wasteful number, since it uses less digits than its factorization.
131464312705 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 98649.
The product of its (nonzero) digits is 60480, while the sum is 37.
Adding to 131464312705 its reverse (507213464131), we get a palindrome (638677776836).
The spelling of 131464312705 in words is "one hundred thirty-one billion, four hundred sixty-four million, three hundred twelve thousand, seven hundred five".
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