Base | Representation |
---|---|
bin | 11001111001001110… |
… | …01011111111010000 |
3 | 1022212211200222212210 |
4 | 30330213023333100 |
5 | 211432330320233 |
6 | 10215243552120 |
7 | 1001333262135 |
oct | 147447137720 |
9 | 38784628783 |
10 | 13901807568 |
11 | 5994231870 |
12 | 283b82b640 |
13 | 140717c04c |
14 | 95c43658c |
15 | 5656d9163 |
hex | 33c9cbfd0 |
13901807568 has 160 divisors (see below), whose sum is σ = 41654476800. Its totient is φ = 3953297920.
The previous prime is 13901807567. The next prime is 13901807611. The reversal of 13901807568 is 86570810931.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13901807567) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 632833 + ... + 654431.
It is an arithmetic number, because the mean of its divisors is an integer number (260340480).
Almost surely, 213901807568 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13901807568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20827238400).
13901807568 is an abundant number, since it is smaller than the sum of its proper divisors (27752669232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13901807568 is a wasteful number, since it uses less digits than its factorization.
13901807568 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21697 (or 21691 counting only the distinct ones).
The product of its (nonzero) digits is 362880, while the sum is 48.
The spelling of 13901807568 in words is "thirteen billion, nine hundred one million, eight hundred seven thousand, five hundred sixty-eight".
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