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231376892 = 22193299711
BaseRepresentation
bin11011100101010…
…00011111111100
3121010101011102112
431302220133330
5433213030032
634543113152
75506446125
oct1562503774
9533334375
10231376892
1110967397a
12655a27b8
1338c21c06
1422a2d04c
15154a61b2
hexdca87fc

231376892 has 12 divisors (see below), whose sum is σ = 407008896. Its totient is φ = 115088640.

The previous prime is 231376891. The next prime is 231376909. The reversal of 231376892 is 298673132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231376891) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 149084 + ... + 150627.

It is an arithmetic number, because the mean of its divisors is an integer number (33917408).

Almost surely, 2231376892 is an apocalyptic number.

It is an amenable number.

231376892 is a deficient number, since it is larger than the sum of its proper divisors (175632004).

231376892 is a wasteful number, since it uses less digits than its factorization.

231376892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299908 (or 299906 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 231376892 is about 15211.0779368196. The cubic root of 231376892 is about 613.9127612158.

The spelling of 231376892 in words is "two hundred thirty-one million, three hundred seventy-six thousand, eight hundred ninety-two".

Divisors: 1 2 4 193 386 772 299711 599422 1198844 57844223 115688446 231376892