Base | Representation |
---|---|
bin | 1011110110100001000010… |
… | …1101000000100001010011 |
3 | 1201010202211111112010020200 |
4 | 2331220100231000201103 |
5 | 3202000410004311011 |
6 | 43414242232510243 |
7 | 2513321361663126 |
oct | 275502055004123 |
9 | 51122744463220 |
10 | 13031211010131 |
11 | 417456198a646 |
12 | 156565224b383 |
13 | 736ab7bcb252 |
14 | 3309dd2283bd |
15 | 178e89773856 |
hex | bda10b40853 |
13031211010131 has 48 divisors (see below), whose sum is σ = 18940002681600. Its totient is φ = 8633593650240.
The previous prime is 13031211010123. The next prime is 13031211010141. The reversal of 13031211010131 is 13101011213031.
It is not a de Polignac number, because 13031211010131 - 23 = 13031211010123 is a prime.
It is a super-2 number, since 2×130312110101312 (a number of 27 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (13031211010141) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2068771420 + ... + 2068777718.
It is an arithmetic number, because the mean of its divisors is an integer number (394583389200).
Almost surely, 213031211010131 is an apocalyptic number.
13031211010131 is a deficient number, since it is larger than the sum of its proper divisors (5908791671469).
13031211010131 is a wasteful number, since it uses less digits than its factorization.
13031211010131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8536 (or 8533 counting only the distinct ones).
The product of its (nonzero) digits is 54, while the sum is 18.
Adding to 13031211010131 its reverse (13101011213031), we get a palindrome (26132222223162).
The spelling of 13031211010131 in words is "thirteen trillion, thirty-one billion, two hundred eleven million, ten thousand, one hundred thirty-one".
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