Base | Representation |
---|---|
bin | 11000011101010110… |
… | …10010100010000010 |
3 | 1020220010112120101120 |
4 | 30032223102202002 |
5 | 203343032143020 |
6 | 10010553413110 |
7 | 643254525534 |
oct | 141653224202 |
9 | 36803476346 |
10 | 13131131010 |
11 | 56291aa098 |
12 | 266570a196 |
13 | 13135c520a |
14 | 8c7d41854 |
15 | 51cc05740 |
hex | 30ead2882 |
13131131010 has 32 divisors (see below), whose sum is σ = 31985088192. Its totient is φ = 3449371200.
The previous prime is 13131130981. The next prime is 13131131033. The reversal of 13131131010 is 1013113131.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3264441 + ... + 3268460.
It is an arithmetic number, because the mean of its divisors is an integer number (999534006).
Almost surely, 213131131010 is an apocalyptic number.
13131131010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13131131010 is an abundant number, since it is smaller than the sum of its proper divisors (18853957182).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13131131010 is a wasteful number, since it uses less digits than its factorization.
13131131010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6532978.
The product of its (nonzero) digits is 27, while the sum is 15.
Adding to 13131131010 its reverse (1013113131), we get a palindrome (14144244141).
The spelling of 13131131010 in words is "thirteen billion, one hundred thirty-one million, one hundred thirty-one thousand, ten".
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