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230772156 = 22323836131
BaseRepresentation
bin11011100000101…
…00110110111100
3121002020102212220
431300110312330
5433034202111
634522125340
75501350056
oct1560246674
9532212786
10230772156
111092a059a
1265350850
1338a6c894
14229128d6
15153d6e06
hexdc14dbc

230772156 has 24 divisors (see below), whose sum is σ = 561880704. Its totient is φ = 73579440.

The previous prime is 230772151. The next prime is 230772163. The reversal of 230772156 is 651277032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230772151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417790 + ... + 418341.

It is an arithmetic number, because the mean of its divisors is an integer number (23411696).

Almost surely, 2230772156 is an apocalyptic number.

It is an amenable number.

230772156 is an abundant number, since it is smaller than the sum of its proper divisors (331108548).

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

230772156 is a wasteful number, since it uses less digits than its factorization.

230772156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836161 (or 836159 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 230772156 is about 15191.1867870815. The cubic root of 230772156 is about 613.3774454988.

The spelling of 230772156 in words is "two hundred thirty million, seven hundred seventy-two thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 836131 1672262 2508393 3344524 5016786 10033572 19231013 38462026 57693039 76924052 115386078 230772156