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231164230 = 25114394787
BaseRepresentation
bin11011100011101…
…00100101000110
3121002222100201011
431301310211012
5433134223410
634534352434
75504602123
oct1561644506
9532870634
10231164230
11109539120
12654bb71a
1338b7918b
14229b574a
151546318a
hexdc74946

231164230 has 32 divisors (see below), whose sum is σ = 455051520. Its totient is φ = 83850720.

The previous prime is 231164207. The next prime is 231164243. The reversal of 231164230 is 32461132.

231164230 is digitally balanced in base 2 and base 3, because in such bases 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 (22).

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, 45897 + ... + 50683.

It is an arithmetic number, because the mean of its divisors is an integer number (14220360).

Almost surely, 2231164230 is an apocalyptic number.

231164230 is a deficient number, since it is larger than the sum of its proper divisors (223887290).

231164230 is a wasteful number, since it uses less digits than its factorization.

231164230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5244.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 231164230 is about 15204.0859639769. The cubic root of 231164230 is about 613.7246180618.

It can be divided in two parts, 231 and 164230, that added together give a palindrome (164461).

The spelling of 231164230 in words is "two hundred thirty-one million, one hundred sixty-four thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 439 878 2195 4390 4787 4829 9574 9658 23935 24145 47870 48290 52657 105314 263285 526570 2101493 4202986 10507465 21014930 23116423 46232846 115582115 231164230