Base | Representation |
---|---|
bin | 1000001010100… |
… | …01111010100000 |
3 | 11202212210200022 |
4 | 10011101322200 |
5 | 120013233320 |
6 | 10444013012 |
7 | 1461115634 |
oct | 405217240 |
9 | 152783608 |
10 | 68492960 |
11 | 35731858 |
12 | 1ab31168 |
13 | 112618a3 |
14 | 914cdc4 |
15 | 602e325 |
hex | 4151ea0 |
68492960 has 96 divisors (see below), whose sum is σ = 169746192. Its totient is φ = 26091520.
The previous prime is 68492939. The next prime is 68492971. The reversal of 68492960 is 6929486.
It can be written as a sum of positive squares in 8 ways, for example, as 39891856 + 28601104 = 6316^2 + 5348^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347582 + ... + 347778.
Almost surely, 268492960 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 68492960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84873096).
68492960 is an abundant number, since it is smaller than the sum of its proper divisors (101253232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68492960 is a wasteful number, since it uses less digits than its factorization.
68492960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 306 (or 298 counting only the distinct ones).
The product of its (nonzero) digits is 186624, while the sum is 44.
The square root of 68492960 is about 8276.0473657417. The cubic root of 68492960 is about 409.1494562820.
The spelling of 68492960 in words is "sixty-eight million, four hundred ninety-two thousand, nine hundred sixty".
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