Base | Representation |
---|---|
bin | 1111100000110… |
… | …00100001110100 |
3 | 100001211222102102 |
4 | 13300120201310 |
5 | 231302431032 |
6 | 20525001232 |
7 | 3140014643 |
oct | 760304164 |
9 | 301758372 |
10 | 130123892 |
11 | 674a7008 |
12 | 376b3218 |
13 | 20c5ccb2 |
14 | 133d335a |
15 | b655362 |
hex | 7c18874 |
130123892 has 6 divisors (see below), whose sum is σ = 227716818. Its totient is φ = 65061944.
The previous prime is 130123843. The next prime is 130123909. The reversal of 130123892 is 298321031.
130123892 is digitally balanced in base 3, 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 only one way, i.e., 127825636 + 2298256 = 11306^2 + 1516^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16265483 + ... + 16265490.
It is an arithmetic number, because the mean of its divisors is an integer number (37952803).
Almost surely, 2130123892 is an apocalyptic number.
It is an amenable number.
130123892 is a deficient number, since it is larger than the sum of its proper divisors (97592926).
130123892 is a wasteful number, since it uses less digits than its factorization.
130123892 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32530977 (or 32530975 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 29.
The square root of 130123892 is about 11407.1859807755. The cubic root of 130123892 is about 506.7405768986.
The spelling of 130123892 in words is "one hundred thirty million, one hundred twenty-three thousand, eight hundred ninety-two".
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