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231623194 = 21134730341
BaseRepresentation
bin11011100111001…
…00101000011010
3121010211200021211
431303210220122
5433243420234
634552253334
75511523165
oct1563445032
9533750254
10231623194
11109821a30
12656a124a
1338caa05a
1422a94adc
1515504164
hexdce4a1a

231623194 has 16 divisors (see below), whose sum is σ = 380124576. Its totient is φ = 104976400.

The previous prime is 231623177. The next prime is 231623201. The reversal of 231623194 is 491326132.

231623194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7537 + ... + 22804.

It is an arithmetic number, because the mean of its divisors is an integer number (23757786).

Almost surely, 2231623194 is an apocalyptic number.

231623194 is a deficient number, since it is larger than the sum of its proper divisors (148501382).

231623194 is a wasteful number, since it uses less digits than its factorization.

231623194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30701.

The product of its digits is 7776, while the sum is 31.

The square root of 231623194 is about 15219.1719222828. The cubic root of 231623194 is about 614.1305218248.

The spelling of 231623194 in words is "two hundred thirty-one million, six hundred twenty-three thousand, one hundred ninety-four".

Divisors: 1 2 11 22 347 694 3817 7634 30341 60682 333751 667502 10528327 21056654 115811597 231623194