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230904644 = 22193038219
BaseRepresentation
bin11011100001101…
…01001101000100
3121002111011121212
431300311031010
5433102422034
634525030552
75502441245
oct1560651504
9532434555
10230904644
11109381093
12653b5458
1338ab7c89
1422948ccc
15154112ce
hexdc35344

230904644 has 12 divisors (see below), whose sum is σ = 425350800. Its totient is φ = 109375848.

The previous prime is 230904643. The next prime is 230904677. The reversal of 230904644 is 446409032.

It is a super-3 number, since 3×2309046443 (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 230904644.

It is not an unprimeable number, because it can be changed into a prime (230904643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1519034 + ... + 1519185.

It is an arithmetic number, because the mean of its divisors is an integer number (35445900).

Almost surely, 2230904644 is an apocalyptic number.

It is an amenable number.

230904644 is a deficient number, since it is larger than the sum of its proper divisors (194446156).

230904644 is a wasteful number, since it uses less digits than its factorization.

230904644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038242 (or 3038240 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 230904644 is about 15195.5468476788. The cubic root of 230904644 is about 613.4948045507.

The spelling of 230904644 in words is "two hundred thirty million, nine hundred four thousand, six hundred forty-four".

Divisors: 1 2 4 19 38 76 3038219 6076438 12152876 57726161 115452322 230904644