Base | Representation |
---|---|
bin | 111101001101010111… |
… | …1000110011001010111 |
3 | 110120021122001202022120 |
4 | 1322122233012121113 |
5 | 4123144413311421 |
6 | 140215055431023 |
7 | 12332221356564 |
oct | 1723257063127 |
9 | 416248052276 |
10 | 131445057111 |
11 | 50822342a05 |
12 | 21584825473 |
13 | c51a39a904 |
14 | 650d38986b |
15 | 3644b588c6 |
hex | 1e9abc6657 |
131445057111 has 16 divisors (see below), whose sum is σ = 185585086944. Its totient is φ = 82468399104.
The previous prime is 131445057089. The next prime is 131445057131. The reversal of 131445057111 is 111750544131.
It is not a de Polignac number, because 131445057111 - 27 = 131445056983 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131445057131) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542511 + ... + 746463.
It is an arithmetic number, because the mean of its divisors is an integer number (11599067934).
Almost surely, 2131445057111 is an apocalyptic number.
131445057111 is a deficient number, since it is larger than the sum of its proper divisors (54140029833).
131445057111 is a wasteful number, since it uses less digits than its factorization.
131445057111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 216610.
The product of its (nonzero) digits is 8400, while the sum is 33.
The spelling of 131445057111 in words is "one hundred thirty-one billion, four hundred forty-five million, fifty-seven thousand, one hundred eleven".
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