Base | Representation |
---|---|
bin | 11100110110000110… |
… | …100010010111010000 |
3 | 2221221112010200221222 |
4 | 130312012202113100 |
5 | 1001412422014402 |
6 | 22121211104212 |
7 | 2144345342510 |
oct | 346606422720 |
9 | 87845120858 |
10 | 30972454352 |
11 | 12154163414 |
12 | 6004742068 |
13 | 2bc79a9488 |
14 | 16db665840 |
15 | c141b87a2 |
hex | 7361a25d0 |
30972454352 has 40 divisors (see below), whose sum is σ = 68624625600. Its totient is φ = 13265632512.
The previous prime is 30972454349. The next prime is 30972454399. The reversal of 30972454352 is 25345427903.
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, 95924 + ... + 266732.
It is an arithmetic number, because the mean of its divisors is an integer number (1715615640).
Almost surely, 230972454352 is an apocalyptic number.
It is an amenable number.
30972454352 is an abundant number, since it is smaller than the sum of its proper divisors (37652171248).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30972454352 is a wasteful number, since it uses less digits than its factorization.
30972454352 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 172443 (or 172437 counting only the distinct ones).
The product of its (nonzero) digits is 907200, while the sum is 44.
The spelling of 30972454352 in words is "thirty billion, nine hundred seventy-two million, four hundred fifty-four thousand, three hundred fifty-two".
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