Base | Representation |
---|---|
bin | 11100101011010101… |
… | …100101101010000000 |
3 | 2221110221022002020000 |
4 | 130223111211222000 |
5 | 1001030203204444 |
6 | 22051240120000 |
7 | 2140023261153 |
oct | 345325455200 |
9 | 87427262200 |
10 | 30791850624 |
11 | 12071219137 |
12 | 5b74166000 |
13 | 2b99453872 |
14 | 16c1691c9a |
15 | c033e1469 |
hex | 72b565a80 |
30791850624 has 160 divisors (see below), whose sum is σ = 94593037440. Its totient is φ = 9932751360.
The previous prime is 30791850601. The next prime is 30791850667. The reversal of 30791850624 is 42605819703.
30791850624 is a `hidden beast` number, since 3 + 0 + 7 + 9 + 18 + 5 + 0 + 624 = 666.
It is a self number, because there is not a number n which added to its sum of digits gives 30791850624.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 273507 + ... + 369309.
It is an arithmetic number, because the mean of its divisors is an integer number (591206484).
It is a 1-persistent number, because it is pandigital, but 2⋅30791850624 = 61583701248 is not.
Almost surely, 230791850624 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30791850624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47296518720).
30791850624 is an abundant number, since it is smaller than the sum of its proper divisors (63801186816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30791850624 is an equidigital number, since it uses as much as digits as its factorization.
30791850624 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 95860 (or 95839 counting only the distinct ones).
The product of its (nonzero) digits is 362880, while the sum is 45.
The spelling of 30791850624 in words is "thirty billion, seven hundred ninety-one million, eight hundred fifty thousand, six hundred twenty-four".
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