Base | Representation |
---|---|
bin | 1000010010100… |
… | …01000011110111 |
3 | 11211211220020221 |
4 | 10021101003313 |
5 | 120300204124 |
6 | 10522235211 |
7 | 1503030544 |
oct | 411210367 |
9 | 154756227 |
10 | 69538039 |
11 | 36285a5a |
12 | 1b355b07 |
13 | 1153948c |
14 | 9341bcb |
15 | 6188ce4 |
hex | 42510f7 |
69538039 has 16 divisors (see below), whose sum is σ = 74511360. Its totient is φ = 64753920.
The previous prime is 69538037. The next prime is 69538057. The reversal of 69538039 is 93083596.
It is a cyclic number.
It is not a de Polignac number, because 69538039 - 21 = 69538037 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 69537986 and 69538004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69538031) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158182 + ... + 158620.
It is an arithmetic number, because the mean of its divisors is an integer number (4656960).
Almost surely, 269538039 is an apocalyptic number.
69538039 is a deficient number, since it is larger than the sum of its proper divisors (4973321).
69538039 is a wasteful number, since it uses less digits than its factorization.
69538039 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 630.
The product of its (nonzero) digits is 174960, while the sum is 43.
The square root of 69538039 is about 8338.9471157935. The cubic root of 69538039 is about 411.2199220433.
The spelling of 69538039 in words is "sixty-nine million, five hundred thirty-eight thousand, thirty-nine".
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