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230523918 = 2392941357
BaseRepresentation
bin11011011110110…
…00010000001110
3121001202211100220
431233120100032
5433003231133
634512532210
75466264252
oct1557302016
9531684326
10230523918
11109141039
1265251066
13389b38b1
142288a262
15153885b3
hexdbd840e

230523918 has 16 divisors (see below), whose sum is σ = 461555280. Its totient is φ = 76756736.

The previous prime is 230523907. The next prime is 230523947. The reversal of 230523918 is 819325032.

230523918 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 15105 + ... + 26252.

It is an arithmetic number, because the mean of its divisors is an integer number (28847205).

Almost surely, 2230523918 is an apocalyptic number.

230523918 is an abundant number, since it is smaller than the sum of its proper divisors (231031362).

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

230523918 is a wasteful number, since it uses less digits than its factorization.

230523918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42291.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 230523918 is about 15183.0141276362. The cubic root of 230523918 is about 613.1574330827.

The spelling of 230523918 in words is "two hundred thirty million, five hundred twenty-three thousand, nine hundred eighteen".

Divisors: 1 2 3 6 929 1858 2787 5574 41357 82714 124071 248142 38420653 76841306 115261959 230523918