Base | Representation |
---|---|
bin | 1000001001111… |
… | …01011110110000 |
3 | 11202201112212110 |
4 | 10010331132300 |
5 | 120003044024 |
6 | 10442125320 |
7 | 1460316630 |
oct | 404753660 |
9 | 152645773 |
10 | 68409264 |
11 | 35684990 |
12 | 1aab0840 |
13 | 11232771 |
14 | 912a6c0 |
15 | 6014629 |
hex | 413d7b0 |
68409264 has 160 divisors (see below), whose sum is σ = 223985664. Its totient is φ = 17475840.
The previous prime is 68409247. The next prime is 68409277. The reversal of 68409264 is 46290486.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306657 + ... + 306879.
Almost surely, 268409264 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 68409264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111992832).
68409264 is an abundant number, since it is smaller than the sum of its proper divisors (155576400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68409264 is a wasteful number, since it uses less digits than its factorization.
68409264 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 335 (or 329 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 39.
The square root of 68409264 is about 8270.9892999568. The cubic root of 68409264 is about 408.9827329148.
The spelling of 68409264 in words is "sixty-eight million, four hundred nine thousand, two hundred sixty-four".
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