Search a number
-
+
231353650 = 25211547769
BaseRepresentation
bin11011100101000…
…10110100110010
3121010022222112201
431302202310302
5433211304100
634542413414
75506321303
oct1562426462
9533288481
10231353650
11109658470
126559126a
1338c14468
1422a247aa
151549e36a
hexdca2d32

231353650 has 48 divisors (see below), whose sum is σ = 470907360. Its totient is φ = 83865600.

The previous prime is 231353627. The next prime is 231353653. The reversal of 231353650 is 56353132.

231353650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2313536502 = 107049022736645000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231353653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300466 + ... + 301234.

It is an arithmetic number, because the mean of its divisors is an integer number (9810570).

Almost surely, 2231353650 is an apocalyptic number.

231353650 is an abundant number, since it is smaller than the sum of its proper divisors (239553710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231353650 is a wasteful number, since it uses less digits than its factorization.

231353650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339 (or 1334 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 231353650 is about 15210.3139349587. The cubic root of 231353650 is about 613.8922045127.

The spelling of 231353650 in words is "two hundred thirty-one million, three hundred fifty-three thousand, six hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 547 550 769 1094 1538 2735 3845 5470 6017 7690 8459 12034 13675 16918 19225 27350 30085 38450 42295 60170 84590 150425 211475 300850 420643 422950 841286 2103215 4206430 4627073 9254146 10516075 21032150 23135365 46270730 115676825 231353650