Base | Representation |
---|---|
bin | 1111100010111… |
… | …01001111111100 |
3 | 100002101021112121 |
4 | 13301131033330 |
5 | 231340432442 |
6 | 20535012324 |
7 | 3142266406 |
oct | 761351774 |
9 | 302337477 |
10 | 130405372 |
11 | 67679539 |
12 | 3780a0a4 |
13 | 2102b156 |
14 | 13467b76 |
15 | b6ad967 |
hex | 7c5d3fc |
130405372 has 12 divisors (see below), whose sum is σ = 228807936. Its totient is φ = 65031680.
The previous prime is 130405361. The next prime is 130405409. The reversal of 130405372 is 273504031.
It is a super-2 number, since 2×1304053722 = 34011122092916768, which contains 22 as substring.
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, 41029 + ... + 44092.
It is an arithmetic number, because the mean of its divisors is an integer number (19067328).
Almost surely, 2130405372 is an apocalyptic number.
It is an amenable number.
130405372 is a deficient number, since it is larger than the sum of its proper divisors (98402564).
130405372 is a wasteful number, since it uses less digits than its factorization.
130405372 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 85508 (or 85506 counting only the distinct ones).
The product of its (nonzero) digits is 2520, while the sum is 25.
The square root of 130405372 is about 11419.5171526646. The cubic root of 130405372 is about 507.1057022912.
The spelling of 130405372 in words is "one hundred thirty million, four hundred five thousand, three hundred seventy-two".
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