Base | Representation |
---|---|
bin | 111101001101010101… |
… | …1111100101110001111 |
3 | 110120021120111210011220 |
4 | 1322122223330232033 |
5 | 4123144210343210 |
6 | 140215030014423 |
7 | 12332211346344 |
oct | 1723253745617 |
9 | 416246453156 |
10 | 131444231055 |
11 | 50821929315 |
12 | 215844a7413 |
13 | c51a16b917 |
14 | 650d2127cb |
15 | 3644a43c70 |
hex | 1e9aafcb8f |
131444231055 has 32 divisors (see below), whose sum is σ = 215628315840. Its totient is φ = 68334059520.
The previous prime is 131444230997. The next prime is 131444231071. The reversal of 131444231055 is 550132444131.
It is not a de Polignac number, because 131444231055 - 26 = 131444230991 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 616411 + ... + 801779.
It is an arithmetic number, because the mean of its divisors is an integer number (6738384870).
Almost surely, 2131444231055 is an apocalyptic number.
131444231055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
131444231055 is a deficient number, since it is larger than the sum of its proper divisors (84184084785).
131444231055 is a wasteful number, since it uses less digits than its factorization.
131444231055 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 186571.
The product of its (nonzero) digits is 28800, while the sum is 33.
Adding to 131444231055 its reverse (550132444131), we get a palindrome (681576675186).
The spelling of 131444231055 in words is "one hundred thirty-one billion, four hundred forty-four million, two hundred thirty-one thousand, fifty-five".
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