Base | Representation |
---|---|
bin | 11000111101011001… |
… | …11110000000011000 |
3 | 1021120212110212110201 |
4 | 30132230332000120 |
5 | 204420400203210 |
6 | 10053400351544 |
7 | 653031114604 |
oct | 143654760030 |
9 | 37525425421 |
10 | 13400006680 |
11 | 5756a55395 |
12 | 271b7755b4 |
13 | 1357216348 |
14 | 911932504 |
15 | 53661753a |
hex | 31eb3e018 |
13400006680 has 32 divisors (see below), whose sum is σ = 31122599040. Its totient is φ = 5187098880.
The previous prime is 13400006657. The next prime is 13400006681. The reversal of 13400006680 is 8660000431.
It is a super-5 number, since 5×134000066805 (a number of 52 digits) contains 55555 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13400006681) 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, 5401989 + ... + 5404468.
It is an arithmetic number, because the mean of its divisors is an integer number (972581220).
Almost surely, 213400006680 is an apocalyptic number.
13400006680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13400006680 is an abundant number, since it is smaller than the sum of its proper divisors (17722592360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13400006680 is a wasteful number, since it uses less digits than its factorization.
13400006680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10806499 (or 10806495 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 28.
The spelling of 13400006680 in words is "thirteen billion, four hundred million, six thousand, six hundred eighty".
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