Base | Representation |
---|---|
bin | 1111100111010… |
… | …11111100101110 |
3 | 100010110222022200 |
4 | 13303223330232 |
5 | 232013133440 |
6 | 20555322330 |
7 | 3150252444 |
oct | 763537456 |
9 | 303428280 |
10 | 130989870 |
11 | 67a386a0 |
12 | 37a503a6 |
13 | 211a41cb |
14 | 1357ab94 |
15 | b776c30 |
hex | 7cebf2e |
130989870 has 48 divisors (see below), whose sum is σ = 371537712. Its totient is φ = 31754880.
The previous prime is 130989869. The next prime is 130989883. The reversal of 130989870 is 78989031.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65167 + ... + 67146.
It is an arithmetic number, because the mean of its divisors is an integer number (7740369).
Almost surely, 2130989870 is an apocalyptic number.
130989870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130989870 is an abundant number, since it is smaller than the sum of its proper divisors (240547842).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130989870 is a wasteful number, since it uses less digits than its factorization.
130989870 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 132337 (or 132334 counting only the distinct ones).
The product of its (nonzero) digits is 108864, while the sum is 45.
The square root of 130989870 is about 11445.0806025995. The cubic root of 130989870 is about 507.8622164405.
The spelling of 130989870 in words is "one hundred thirty million, nine hundred eighty-nine thousand, eight hundred seventy".
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