Base | Representation |
---|---|
bin | 11001110011111001… |
… | …10111011000100000 |
3 | 1022202201200121010120 |
4 | 30321330313120200 |
5 | 211334413034223 |
6 | 10211011000240 |
7 | 1000251622362 |
oct | 147174673040 |
9 | 38681617116 |
10 | 13857158688 |
11 | 597100646a |
12 | 2828899080 |
13 | 13cab484a9 |
14 | 956532d32 |
15 | 561819be3 |
hex | 339f37620 |
13857158688 has 96 divisors (see below), whose sum is σ = 37386639360. Its totient is φ = 4492350720.
The previous prime is 13857158687. The next prime is 13857158729. The reversal of 13857158688 is 88685175831.
It is a tau number, because it is divible by the number of its divisors (96).
It is not an unprimeable number, because it can be changed into a prime (13857158683) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494493 + ... + 521763.
It is an arithmetic number, because the mean of its divisors is an integer number (389444160).
Almost surely, 213857158688 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 13857158688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18693319680).
13857158688 is an abundant number, since it is smaller than the sum of its proper divisors (23529480672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13857158688 is a wasteful number, since it uses less digits than its factorization.
13857158688 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27430 (or 27422 counting only the distinct ones).
The product of its digits is 12902400, while the sum is 60.
The spelling of 13857158688 in words is "thirteen billion, eight hundred fifty-seven million, one hundred fifty-eight thousand, six hundred eighty-eight".
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