Base | Representation |
---|---|
bin | 110010101010… |
… | …011110101000 |
3 | 220222202101000 |
4 | 302222132220 |
5 | 11344444232 |
6 | 1152355000 |
7 | 220613451 |
oct | 62523650 |
9 | 26882330 |
10 | 13281192 |
11 | 75513a1 |
12 | 4545a60 |
13 | 29a01c2 |
14 | 1a9a128 |
15 | 127527c |
hex | caa7a8 |
13281192 has 32 divisors (see below), whose sum is σ = 36892800. Its totient is φ = 4426992.
The previous prime is 13281181. The next prime is 13281193. The reversal of 13281192 is 29118231.
13281192 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a nude number because it is divisible by every one of its digits.
It is not an unprimeable number, because it can be changed into a prime (13281193) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30528 + ... + 30959.
It is an arithmetic number, because the mean of its divisors is an integer number (1152900).
Almost surely, 213281192 is an apocalyptic number.
13281192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
13281192 is an abundant number, since it is smaller than the sum of its proper divisors (23611608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13281192 is a wasteful number, since it uses less digits than its factorization.
13281192 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 61502 (or 61492 counting only the distinct ones).
The product of its digits is 864, while the sum is 27.
The square root of 13281192 is about 3644.3369767353. The cubic root of 13281192 is about 236.8167145646.
The spelling of 13281192 in words is "thirteen million, two hundred eighty-one thousand, one hundred ninety-two".
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