Base | Representation |
---|---|
bin | 11000001111010010… |
… | …10110011011001101 |
3 | 1020120220121010222112 |
4 | 30013221112123031 |
5 | 203122333312112 |
6 | 5551141353405 |
7 | 640323136403 |
oct | 140751263315 |
9 | 36526533875 |
10 | 13013182157 |
11 | 55786693a8 |
12 | 2632108865 |
13 | 12c5038ab1 |
14 | 8b63db473 |
15 | 5126a7a22 |
hex | 307a566cd |
13013182157 has 8 divisors (see below), whose sum is σ = 13125742200. Its totient is φ = 12900958720.
The previous prime is 13013182129. The next prime is 13013182177. The reversal of 13013182157 is 75128131031.
It can be written as a sum of positive squares in 4 ways, for example, as 1284075556 + 11729106601 = 35834^2 + 108301^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13013182157 - 28 = 13013181901 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13013182177) 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, 6188 + ... + 161445.
It is an arithmetic number, because the mean of its divisors is an integer number (1640717775).
Almost surely, 213013182157 is an apocalyptic number.
It is an amenable number.
13013182157 is a deficient number, since it is larger than the sum of its proper divisors (112560043).
13013182157 is a wasteful number, since it uses less digits than its factorization.
13013182157 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 168303.
The product of its (nonzero) digits is 5040, while the sum is 32.
The spelling of 13013182157 in words is "thirteen billion, thirteen million, one hundred eighty-two thousand, one hundred fifty-seven".
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