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231297004 = 221671811913
BaseRepresentation
bin11011100100101…
…00111111101100
3121010020002211201
431302110333230
5433203001004
634541255244
75505664201
oct1562247754
9533202751
10231297004
11109619954
1265564524
1338bc4743
1422a0bca8
151548c6a4
hexdc94fec

231297004 has 24 divisors (see below), whose sum is σ = 409657248. Its totient is φ = 114261120.

The previous prime is 231296999. The next prime is 231297023. The reversal of 231297004 is 400792132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119952 + ... + 121864.

It is an arithmetic number, because the mean of its divisors is an integer number (17069052).

Almost surely, 2231297004 is an apocalyptic number.

It is an amenable number.

231297004 is a deficient number, since it is larger than the sum of its proper divisors (178360244).

231297004 is a wasteful number, since it uses less digits than its factorization.

231297004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265 (or 2263 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 231297004 is about 15208.4517292195. The cubic root of 231297004 is about 613.8420974201.

The spelling of 231297004 in words is "two hundred thirty-one million, two hundred ninety-seven thousand, four".

Divisors: 1 2 4 167 181 334 362 668 724 1913 3826 7652 30227 60454 120908 319471 346253 638942 692506 1277884 1385012 57824251 115648502 231297004