Base | Representation |
---|---|
bin | 11100101001100100… |
… | …110001001100111000 |
3 | 2221101212122111222020 |
4 | 130221210301030320 |
5 | 1001000120310030 |
6 | 22044302154440 |
7 | 2136214012545 |
oct | 345144611470 |
9 | 87355574866 |
10 | 30762275640 |
11 | 12056558aa8 |
12 | 5b66282a20 |
13 | 2b9329a185 |
14 | 16bb793bcc |
15 | c009ed510 |
hex | 729931338 |
30762275640 has 64 divisors (see below), whose sum is σ = 92327592960. Its totient is φ = 8199649920.
The previous prime is 30762275639. The next prime is 30762275647. The reversal of 30762275640 is 4657226703.
It is a junction number, because it is equal to n+sod(n) for n = 30762275592 and 30762275601.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30762275647) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221857 + ... + 332783.
It is an arithmetic number, because the mean of its divisors is an integer number (1442618640).
Almost surely, 230762275640 is an apocalyptic number.
30762275640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30762275640 is an abundant number, since it is smaller than the sum of its proper divisors (61565317320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30762275640 is a wasteful number, since it uses less digits than its factorization.
30762275640 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 113252 (or 113248 counting only the distinct ones).
The product of its (nonzero) digits is 423360, while the sum is 42.
The spelling of 30762275640 in words is "thirty billion, seven hundred sixty-two million, two hundred seventy-five thousand, six hundred forty".
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