Base | Representation |
---|---|
bin | 110011011110… |
… | …111010100100 |
3 | 221101122222211 |
4 | 303132322210 |
5 | 11423332342 |
6 | 1201133204 |
7 | 222466600 |
oct | 63367244 |
9 | 27348884 |
10 | 13495972 |
11 | 76887a6 |
12 | 462a204 |
13 | 2a46ba9 |
14 | 1b14500 |
15 | 12b8c17 |
hex | cdeea4 |
13495972 has 36 divisors (see below), whose sum is σ = 28231644. Its totient is φ = 5624640.
The previous prime is 13495969. The next prime is 13496033. The reversal of 13495972 is 27959431.
It can be written as a sum of positive squares in 2 ways, for example, as 4769856 + 8726116 = 2184^2 + 2954^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6322 + ... + 8182.
Almost surely, 213495972 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 13495972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14115822).
13495972 is an abundant number, since it is smaller than the sum of its proper divisors (14735672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13495972 is a wasteful number, since it uses less digits than its factorization.
13495972 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1916 (or 1907 counting only the distinct ones).
The product of its digits is 68040, while the sum is 40.
The square root of 13495972 is about 3673.6864319101. The cubic root of 13495972 is about 238.0864737675.
The spelling of 13495972 in words is "thirteen million, four hundred ninety-five thousand, nine hundred seventy-two".
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