Base | Representation |
---|---|
bin | 1000010001010… |
… | …11010111110000 |
3 | 11211120001111100 |
4 | 10020223113300 |
5 | 120230234124 |
6 | 10515044400 |
7 | 1501515510 |
oct | 410532760 |
9 | 154501440 |
10 | 69383664 |
11 | 3618aa79 |
12 | 1b2a0700 |
13 | 114b412c |
14 | 9301840 |
15 | 61581c9 |
hex | 422b5f0 |
69383664 has 120 divisors (see below), whose sum is σ = 235029600. Its totient is φ = 18653184.
The previous prime is 69383651. The next prime is 69383723. The reversal of 69383664 is 46638396.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15112 + ... + 19160.
It is an arithmetic number, because the mean of its divisors is an integer number (1958580).
Almost surely, 269383664 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 69383664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117514800).
69383664 is an abundant number, since it is smaller than the sum of its proper divisors (165645936).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69383664 is a wasteful number, since it uses less digits than its factorization.
69383664 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4087 (or 4078 counting only the distinct ones).
The product of its digits is 559872, while the sum is 45.
The square root of 69383664 is about 8329.6857083566. The cubic root of 69383664 is about 410.9153927463.
The spelling of 69383664 in words is "sixty-nine million, three hundred eighty-three thousand, six hundred sixty-four".
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