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230159241 = 321323892
BaseRepresentation
bin11011011011111…
…11001110001001
3121001002022010100
431231333032021
5432410043431
634501040013
75463215124
oct1555771611
9531068110
10230159241
11108a12054
12650b6009
13388b6900
14227d33bb
15153154e6
hexdb7f389

230159241 has 27 divisors (see below), whose sum is σ = 360920469. Its totient is φ = 141272352.

The previous prime is 230159239. The next prime is 230159261. The reversal of 230159241 is 142951032.

The square root of 230159241 is 15171.

It is a perfect power (a square), and thus also a powerful number.

230159241 is a `hidden beast` number, since 2 + 30 + 1 + 592 + 41 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 88454025 + 141705216 = 9405^2 + 11904^2 .

It is not a de Polignac number, because 230159241 - 21 = 230159239 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (230159261) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 591475 + ... + 591863.

Almost surely, 2230159241 is an apocalyptic number.

230159241 is the 15171-st square number.

230159241 is the 7586-th centered octagonal number.

It is an amenable number.

230159241 is a deficient number, since it is larger than the sum of its proper divisors (130761228).

230159241 is an equidigital number, since it uses as much as digits as its factorization.

230159241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The cubic root of 230159241 is about 612.8339345796.

It can be divided in two parts, 230159 and 241, that added together give a square (230400 = 4802).

The spelling of 230159241 in words is "two hundred thirty million, one hundred fifty-nine thousand, two hundred forty-one".

Divisors: 1 3 9 13 39 117 169 389 507 1167 1521 3501 5057 15171 45513 65741 151321 197223 453963 591669 1361889 1967173 5901519 17704557 25573249 76719747 230159241