Base | Representation |
---|---|
bin | 11000011101011010… |
… | …10011101111011011 |
3 | 1020220011112110101002 |
4 | 30032231103233123 |
5 | 203343201112001 |
6 | 10011013015215 |
7 | 643262161523 |
oct | 141655235733 |
9 | 36804473332 |
10 | 13131660251 |
11 | 5629530786 |
12 | 266592450b |
13 | 131374c088 |
14 | 8c803c683 |
15 | 51ccac46b |
hex | 30eb53bdb |
13131660251 has 8 divisors (see below), whose sum is σ = 13930705584. Its totient is φ = 12335569920.
The previous prime is 13131660239. The next prime is 13131660257. The reversal of 13131660251 is 15206613131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13131660251 - 210 = 13131659227 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13131660257) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729590 + ... + 747371.
It is an arithmetic number, because the mean of its divisors is an integer number (1741338198).
Almost surely, 213131660251 is an apocalyptic number.
13131660251 is a deficient number, since it is larger than the sum of its proper divisors (799045333).
13131660251 is a wasteful number, since it uses less digits than its factorization.
13131660251 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1477501.
The product of its (nonzero) digits is 3240, while the sum is 29.
The spelling of 13131660251 in words is "thirteen billion, one hundred thirty-one million, six hundred sixty thousand, two hundred fifty-one".
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