Base | Representation |
---|---|
bin | 1000001110100… |
… | …01101101101111 |
3 | 11210212101202010 |
4 | 10013101231233 |
5 | 120132011211 |
6 | 10503132303 |
7 | 1465426041 |
oct | 407215557 |
9 | 153771663 |
10 | 69016431 |
11 | 35a5a080 |
12 | 1b144093 |
13 | 113b5c33 |
14 | 9247a91 |
15 | 60d44a6 |
hex | 41d1b6f |
69016431 has 16 divisors (see below), whose sum is σ = 101386368. Its totient is φ = 41412000.
The previous prime is 69016429. The next prime is 69016439. The reversal of 69016431 is 13461096.
It is not a de Polignac number, because 69016431 - 21 = 69016429 is a prime.
It is a super-2 number, since 2×690164312 = 9526535495955522, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69016439) 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, 7021 + ... + 13686.
It is an arithmetic number, because the mean of its divisors is an integer number (6336648).
Almost surely, 269016431 is an apocalyptic number.
69016431 is a deficient number, since it is larger than the sum of its proper divisors (32369937).
69016431 is a wasteful number, since it uses less digits than its factorization.
69016431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20822.
The product of its (nonzero) digits is 3888, while the sum is 30.
The square root of 69016431 is about 8307.6128340216. The cubic root of 69016431 is about 410.1891473089.
The spelling of 69016431 in words is "sixty-nine million, sixteen thousand, four hundred thirty-one".
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