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230977172 = 2257744293
BaseRepresentation
bin11011100010001…
…10111010010100
3121002121212010002
431301012322110
5433112232142
634530350432
75503162556
oct1561067224
9532555102
10230977172
11109420628
126542b418
1338b11caa
14229674d6
1515427a32
hexdc46e94

230977172 has 6 divisors (see below), whose sum is σ = 404210058. Its totient is φ = 115488584.

The previous prime is 230977163. The next prime is 230977193. The reversal of 230977172 is 271779032.

230977172 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 can be written as a sum of positive squares in only one way, i.e., 222427396 + 8549776 = 14914^2 + 2924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28872143 + ... + 28872150.

It is an arithmetic number, because the mean of its divisors is an integer number (67368343).

Almost surely, 2230977172 is an apocalyptic number.

It is an amenable number.

230977172 is a deficient number, since it is larger than the sum of its proper divisors (173232886).

230977172 is a wasteful number, since it uses less digits than its factorization.

230977172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57744297 (or 57744295 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 38.

The square root of 230977172 is about 15197.9331489515. The cubic root of 230977172 is about 613.5590314865.

The spelling of 230977172 in words is "two hundred thirty million, nine hundred seventy-seven thousand, one hundred seventy-two".

Divisors: 1 2 4 57744293 115488586 230977172