Base | Representation |
---|---|
bin | 1111100000111… |
… | …01101011010000 |
3 | 100001220001100022 |
4 | 13300131223100 |
5 | 231304114401 |
6 | 20525243012 |
7 | 3140133263 |
oct | 760355320 |
9 | 301801308 |
10 | 130144976 |
11 | 67510935 |
12 | 37703468 |
13 | 20c69780 |
14 | 133dacda |
15 | b65b71b |
hex | 7c1dad0 |
130144976 has 20 divisors (see below), whose sum is σ = 271552932. Its totient is φ = 60066816.
The previous prime is 130144969. The next prime is 130144991. The reversal of 130144976 is 679441031.
It can be written as a sum of positive squares in 2 ways, for example, as 89491600 + 40653376 = 9460^2 + 6376^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312641 + ... + 313056.
Almost surely, 2130144976 is an apocalyptic number.
130144976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
130144976 is an abundant number, since it is smaller than the sum of its proper divisors (141407956).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130144976 is a wasteful number, since it uses less digits than its factorization.
130144976 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 625718 (or 625712 counting only the distinct ones).
The product of its (nonzero) digits is 18144, while the sum is 35.
The square root of 130144976 is about 11408.1100976454. The cubic root of 130144976 is about 506.7679445126.
The spelling of 130144976 in words is "one hundred thirty million, one hundred forty-four thousand, nine hundred seventy-six".
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