Base | Representation |
---|---|
bin | 11100111111000010… |
… | …00100111011010000 |
3 | 1111011111001022222211 |
4 | 32133201010323100 |
5 | 223332123301120 |
6 | 11052041241504 |
7 | 1060422410503 |
oct | 163741047320 |
9 | 44144038884 |
10 | 15561150160 |
11 | 6665955486 |
12 | 3023493294 |
13 | 160cb9177a |
14 | a7897713a |
15 | 61120b25a |
hex | 39f844ed0 |
15561150160 has 20 divisors (see below), whose sum is σ = 36179674308. Its totient is φ = 6224460032.
The previous prime is 15561150151. The next prime is 15561150161. The reversal of 15561150160 is 6105116551.
15561150160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 3327905344 + 12233244816 = 57688^2 + 110604^2 .
It is a tau number, because it is divible by the number of its divisors (20).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15561150161) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97257109 + ... + 97257268.
Almost surely, 215561150160 is an apocalyptic number.
15561150160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
15561150160 is an abundant number, since it is smaller than the sum of its proper divisors (20618524148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15561150160 is a wasteful number, since it uses less digits than its factorization.
15561150160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 194514390 (or 194514384 counting only the distinct ones).
The product of its (nonzero) digits is 4500, while the sum is 31.
The spelling of 15561150160 in words is "fifteen billion, five hundred sixty-one million, one hundred fifty thousand, one hundred sixty".
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