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231564014 = 21129362953
BaseRepresentation
bin11011100110101…
…10001011101110
3121010201200002222
431303112023232
5433240022024
634551115342
75511155513
oct1563261356
9533650088
10231564014
11109791520
1265672b52
1338c89136
1422a7b30a
15154e185e
hexdcd62ee

231564014 has 16 divisors (see below), whose sum is σ = 391990320. Its totient is φ = 101626560.

The previous prime is 231563999. The next prime is 231564041. The reversal of 231564014 is 410465132.

It is a congruent number.

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, 180839 + ... + 182114.

It is an arithmetic number, because the mean of its divisors is an integer number (24499395).

Almost surely, 2231564014 is an apocalyptic number.

231564014 is a deficient number, since it is larger than the sum of its proper divisors (160426306).

231564014 is a wasteful number, since it uses less digits than its factorization.

231564014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362995.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 231564014 is about 15217.2275398642. The cubic root of 231564014 is about 614.0782136780.

The spelling of 231564014 in words is "two hundred thirty-one million, five hundred sixty-four thousand, fourteen".

Divisors: 1 2 11 22 29 58 319 638 362953 725906 3992483 7984966 10525637 21051274 115782007 231564014