Base | Representation |
---|---|
bin | 1000001110101… |
… | …01010001111111 |
3 | 11210220010210011 |
4 | 10013111101333 |
5 | 120132443124 |
6 | 10503324051 |
7 | 1465516450 |
oct | 407252177 |
9 | 153803704 |
10 | 69031039 |
11 | 35a6a050 |
12 | 1b150627 |
13 | 113bc78c |
14 | 924d127 |
15 | 60d8994 |
hex | 41d547f |
69031039 has 16 divisors (see below), whose sum is σ = 88070400. Its totient is φ = 52536960.
The previous prime is 69031021. The next prime is 69031091. The reversal of 69031039 is 93013096.
It is not a de Polignac number, because 69031039 - 25 = 69031007 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 69031039.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69035039) 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, 7114 + ... + 13735.
It is an arithmetic number, because the mean of its divisors is an integer number (5504400).
Almost surely, 269031039 is an apocalyptic number.
69031039 is a deficient number, since it is larger than the sum of its proper divisors (19039361).
69031039 is a wasteful number, since it uses less digits than its factorization.
69031039 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20910.
The product of its (nonzero) digits is 4374, while the sum is 31.
The square root of 69031039 is about 8308.4919810998. The cubic root of 69031039 is about 410.2180854437.
The spelling of 69031039 in words is "sixty-nine million, thirty-one thousand, thirty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.080 sec. • engine limits •