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230387643 = 3225598627
BaseRepresentation
bin11011011101101…
…10111110111011
3121001111220102200
431232312332323
5432434401033
634510001243
75465156043
oct1556667673
9531456380
10230387643
11109058712
12651a6223
1338966865
1422852723
151535d013
hexdbb6fbb

230387643 has 6 divisors (see below), whose sum is σ = 332782164. Its totient is φ = 153591756.

The previous prime is 230387627. The next prime is 230387653. The reversal of 230387643 is 346783032.

230387643 is a `hidden beast` number, since 2 + 3 + 0 + 3 + 8 + 7 + 643 = 666.

It is not a de Polignac number, because 230387643 - 24 = 230387627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 230387598 and 230387607.

It is not an unprimeable number, because it can be changed into a prime (230387653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12799305 + ... + 12799322.

It is an arithmetic number, because the mean of its divisors is an integer number (55463694).

Almost surely, 2230387643 is an apocalyptic number.

230387643 is a deficient number, since it is larger than the sum of its proper divisors (102394521).

230387643 is a wasteful number, since it uses less digits than its factorization.

230387643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25598633 (or 25598630 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 230387643 is about 15178.5257189228. The cubic root of 230387643 is about 613.0365858975.

The spelling of 230387643 in words is "two hundred thirty million, three hundred eighty-seven thousand, six hundred forty-three".

Divisors: 1 3 9 25598627 76795881 230387643