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231052404 = 223112227701
BaseRepresentation
bin11011100010110…
…01010001110100
3121002202200022110
431301121101310
5433122134104
634532131020
75503625112
oct1561312164
9532680273
10231052404
11109472100
1265466a70
1338b3a2cb
1422986ab2
151543ee89
hexdc59474

231052404 has 72 divisors (see below), whose sum is σ = 596048544. Its totient is φ = 69608000.

The previous prime is 231052403. The next prime is 231052417. The reversal of 231052404 is 404250132.

231052404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231052403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329254 + ... + 329954.

It is an arithmetic number, because the mean of its divisors is an integer number (8278452).

Almost surely, 2231052404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231052404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298024272).

231052404 is an abundant number, since it is smaller than the sum of its proper divisors (364996140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231052404 is a wasteful number, since it uses less digits than its factorization.

231052404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957 (or 944 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 231052404 is about 15200.4080208394. The cubic root of 231052404 is about 613.6256387361.

The spelling of 231052404 in words is "two hundred thirty-one million, fifty-two thousand, four hundred four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 121 132 227 242 363 454 484 681 701 726 908 1362 1402 1452 2103 2497 2724 2804 4206 4994 7491 7711 8412 9988 14982 15422 23133 27467 29964 30844 46266 54934 82401 84821 92532 109868 159127 164802 169642 254463 318254 329604 339284 477381 508926 636508 954762 1017852 1750397 1909524 3500794 5251191 7001588 10502382 19254367 21004764 38508734 57763101 77017468 115526202 231052404