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230634369 = 32719192677
BaseRepresentation
bin11011011111100…
…11001110000001
3121001222102212200
431233303032001
5433020244434
634515143413
75500234260
oct1557631601
9531872780
10230634369
11109207019
12652a4b69
1338a21c54
14228b85d7
15153ab199
hexdbf3381

230634369 has 24 divisors (see below), whose sum is σ = 400770240. Its totient is φ = 124854048.

The previous prime is 230634329. The next prime is 230634449. The reversal of 230634369 is 963436032.

230634369 is a `hidden beast` number, since 2 + 306 + 343 + 6 + 9 = 666.

It is not a de Polignac number, because 230634369 - 211 = 230632321 is a prime.

It is a super-2 number, since 2×2306343692 = 106384424328056322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (230634319) 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, 95142 + ... + 97535.

It is an arithmetic number, because the mean of its divisors is an integer number (16698760).

Almost surely, 2230634369 is an apocalyptic number.

It is an amenable number.

230634369 is a deficient number, since it is larger than the sum of its proper divisors (170135871).

230634369 is a wasteful number, since it uses less digits than its factorization.

230634369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192709 (or 192706 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

The square root of 230634369 is about 15186.6510133077. The cubic root of 230634369 is about 613.2553448871.

The spelling of 230634369 in words is "two hundred thirty million, six hundred thirty-four thousand, three hundred sixty-nine".

Divisors: 1 3 7 9 19 21 57 63 133 171 399 1197 192677 578031 1348739 1734093 3660863 4046217 10982589 12138651 25626041 32947767 76878123 230634369