Base | Representation |
---|---|
bin | 11001001101111001… |
… | …00001000010110000 |
3 | 1021221111200220100111 |
4 | 30212330201002300 |
5 | 210211301100310 |
6 | 10115220431104 |
7 | 656330436424 |
oct | 144674410260 |
9 | 37844626314 |
10 | 13538300080 |
11 | 5818021258 |
12 | 2759b48494 |
13 | 1379a76966 |
14 | 926050b84 |
15 | 54383328a |
hex | 326f210b0 |
13538300080 has 40 divisors (see below), whose sum is σ = 31484672352. Its totient is φ = 5413922304.
The previous prime is 13538300077. The next prime is 13538300099. The reversal of 13538300080 is 8000383531.
It is a tau number, because it is divible by the number of its divisors (40).
It is a super-2 number, since 2×135383000802 (a number of 21 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324069 + ... + 363451.
Almost surely, 213538300080 is an apocalyptic number.
13538300080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13538300080 is an abundant number, since it is smaller than the sum of its proper divisors (17946372272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13538300080 is a wasteful number, since it uses less digits than its factorization.
13538300080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43693 (or 43687 counting only the distinct ones).
The product of its (nonzero) digits is 8640, while the sum is 31.
The spelling of 13538300080 in words is "thirteen billion, five hundred thirty-eight million, three hundred thousand, eighty".
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