Base | Representation |
---|---|
bin | 11000011110010011… |
… | …01101100010111100 |
3 | 1020220200112201222211 |
4 | 30033021231202330 |
5 | 203402102342410 |
6 | 10011440350204 |
7 | 643412362300 |
oct | 141711554274 |
9 | 36820481884 |
10 | 13139105980 |
11 | 5632756880 |
12 | 2668315364 |
13 | 1315158130 |
14 | 8c9019d00 |
15 | 51d77d68a |
hex | 30f26d8bc |
13139105980 has 576 divisors, whose sum is σ = 40396164480. Its totient is φ = 3522355200.
The previous prime is 13139105939. The next prime is 13139106053. The reversal of 13139105980 is 8950193131.
It is a super-2 number, since 2×131391059802 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 215395150 + ... + 215395210.
It is an arithmetic number, because the mean of its divisors is an integer number (70132230).
Almost surely, 213139105980 is an apocalyptic number.
13139105980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13139105980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20198082240).
13139105980 is an abundant number, since it is smaller than the sum of its proper divisors (27257058500).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13139105980 is a wasteful number, since it uses less digits than its factorization.
13139105980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 190 (or 181 counting only the distinct ones).
The product of its (nonzero) digits is 29160, while the sum is 40.
The spelling of 13139105980 in words is "thirteen billion, one hundred thirty-nine million, one hundred five thousand, nine hundred eighty".
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