Base | Representation |
---|---|
bin | 111101001111011000… |
… | …1010011000100111111 |
3 | 110120110100102111210222 |
4 | 1322132301103010333 |
5 | 4123314230222312 |
6 | 140225514251555 |
7 | 12334002602330 |
oct | 1723661230477 |
9 | 416410374728 |
10 | 131512742207 |
11 | 50857572800 |
12 | 215a3426bbb |
13 | c52b408872 |
14 | 6518368287 |
15 | 364aa78672 |
hex | 1e9ec5313f |
131512742207 has 12 divisors (see below), whose sum is σ = 165206090448. Its totient is φ = 102477460800.
The previous prime is 131512742189. The next prime is 131512742209. The reversal of 131512742207 is 702247215131.
It is not a de Polignac number, because 131512742207 - 224 = 131495964991 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131512742209) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77633594 + ... + 77635287.
It is an arithmetic number, because the mean of its divisors is an integer number (13767174204).
Almost surely, 2131512742207 is an apocalyptic number.
131512742207 is a deficient number, since it is larger than the sum of its proper divisors (33693348241).
131512742207 is a wasteful number, since it uses less digits than its factorization.
131512742207 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 155268910 (or 155268899 counting only the distinct ones).
The product of its (nonzero) digits is 23520, while the sum is 35.
Adding to 131512742207 its reverse (702247215131), we get a palindrome (833759957338).
The spelling of 131512742207 in words is "one hundred thirty-one billion, five hundred twelve million, seven hundred forty-two thousand, two hundred seven".
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