Base | Representation |
---|---|
bin | 111100101010111110… |
… | …1111010100100011000 |
3 | 110110022020002110211020 |
4 | 1321111331322210120 |
5 | 4113314034003140 |
6 | 135504403002440 |
7 | 12261511613106 |
oct | 1712575724430 |
9 | 413266073736 |
10 | 130291312920 |
11 | 5029005a90a |
12 | 21302369420 |
13 | c395350542 |
14 | 644005ac76 |
15 | 35c87086d0 |
hex | 1e55f7a918 |
130291312920 has 32 divisors (see below), whose sum is σ = 390873939120. Its totient is φ = 34744350080.
The previous prime is 130291312889. The next prime is 130291312933. The reversal of 130291312920 is 29213192031.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542880351 + ... + 542880590.
Almost surely, 2130291312920 is an apocalyptic number.
130291312920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
130291312920 is an abundant number, since it is smaller than the sum of its proper divisors (260582626200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130291312920 is a wasteful number, since it uses less digits than its factorization.
130291312920 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1085760955 (or 1085760951 counting only the distinct ones).
The product of its (nonzero) digits is 5832, while the sum is 33.
It can be divided in two parts, 130291 and 312920, that added together give a triangular number (443211 = T941).
The spelling of 130291312920 in words is "one hundred thirty billion, two hundred ninety-one million, three hundred twelve thousand, nine hundred twenty".
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