Base | Representation |
---|---|
bin | 11100110001001000… |
… | …010101001011100000 |
3 | 2221201201011202000012 |
4 | 130301020111023200 |
5 | 1001230043213220 |
6 | 22105031144052 |
7 | 2142313332002 |
oct | 346110251340 |
9 | 87651152005 |
10 | 30889038560 |
11 | 12111069946 |
12 | 5ba0815028 |
13 | 2bb3621413 |
14 | 16d0550372 |
15 | c0bbdcac5 |
hex | 7312152e0 |
30889038560 has 48 divisors (see below), whose sum is σ = 74947674816. Its totient is φ = 12021677568.
The previous prime is 30889038547. The next prime is 30889038563. The reversal of 30889038560 is 6583098803.
It is a super-2 number, since 2×308890385602 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30889038499 and 30889038508.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30889038563) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2602952 + ... + 2614791.
It is an arithmetic number, because the mean of its divisors is an integer number (1561409892).
Almost surely, 230889038560 is an apocalyptic number.
It is an amenable number.
30889038560 is an abundant number, since it is smaller than the sum of its proper divisors (44058636256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30889038560 is a wasteful number, since it uses less digits than its factorization.
30889038560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5217795 (or 5217787 counting only the distinct ones).
The product of its (nonzero) digits is 1244160, while the sum is 50.
The spelling of 30889038560 in words is "thirty billion, eight hundred eighty-nine million, thirty-eight thousand, five hundred sixty".
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