Base | Representation |
---|---|
bin | 1111101000010… |
… | …10000100001110 |
3 | 100010201020112120 |
4 | 13310022010032 |
5 | 232031110410 |
6 | 21002113410 |
7 | 3151305213 |
oct | 764120416 |
9 | 303636476 |
10 | 131113230 |
11 | 68012346 |
12 | 37aab866 |
13 | 212183c1 |
14 | 135adb0a |
15 | b79d570 |
hex | 7d0a10e |
131113230 has 32 divisors (see below), whose sum is σ = 315542304. Its totient is φ = 34866816.
The previous prime is 131113223. The next prime is 131113259. The reversal of 131113230 is 32311131.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5332 + ... + 17048.
It is an arithmetic number, because the mean of its divisors is an integer number (9860697).
Almost surely, 2131113230 is an apocalyptic number.
131113230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131113230 is an abundant number, since it is smaller than the sum of its proper divisors (184429074).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131113230 is a wasteful number, since it uses less digits than its factorization.
131113230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12100.
The product of its (nonzero) digits is 54, while the sum is 15.
The square root of 131113230 is about 11450.4685493651. The cubic root of 131113230 is about 508.0215932087.
Adding to 131113230 its reverse (32311131), we get a palindrome (163424361).
It can be divided in two parts, 1311 and 13230, that added together give a palindrome (14541).
The spelling of 131113230 in words is "one hundred thirty-one million, one hundred thirteen thousand, two hundred thirty".
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