Base | Representation |
---|---|
bin | 1000010000101… |
… | …01001001111000 |
3 | 11211101102122222 |
4 | 10020111021320 |
5 | 120214331124 |
6 | 10513103212 |
7 | 1500656300 |
oct | 410251170 |
9 | 154342588 |
10 | 69292664 |
11 | 36128671 |
12 | 1b257b08 |
13 | 1148189c |
14 | 92ba600 |
15 | 613b25e |
hex | 4215278 |
69292664 has 48 divisors (see below), whose sum is σ = 154392480. Its totient is φ = 29057280.
The previous prime is 69292649. The next prime is 69292669. The reversal of 69292664 is 46629296.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69292669) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16544 + ... + 20304.
It is an arithmetic number, because the mean of its divisors is an integer number (3216510).
Almost surely, 269292664 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 69292664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77196240).
69292664 is an abundant number, since it is smaller than the sum of its proper divisors (85099816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69292664 is a wasteful number, since it uses less digits than its factorization.
69292664 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3828 (or 3817 counting only the distinct ones).
The product of its digits is 279936, while the sum is 44.
The square root of 69292664 is about 8324.2215251638. The cubic root of 69292664 is about 410.7356690755.
The spelling of 69292664 in words is "sixty-nine million, two hundred ninety-two thousand, six hundred sixty-four".
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