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230307863 = 1671379089
BaseRepresentation
bin11011011101000…
…11100000010111
3121001100211222212
431232203200113
5432424322423
634504144035
75464404332
oct1556434027
9531324885
10230307863
11109003785
126516801b
1338939456
1422831619
1515344578
hexdba3817

230307863 has 4 divisors (see below), whose sum is σ = 231687120. Its totient is φ = 228928608.

The previous prime is 230307841. The next prime is 230307887. The reversal of 230307863 is 368703032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 230307863 - 220 = 229259287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230307263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689378 + ... + 689711.

It is an arithmetic number, because the mean of its divisors is an integer number (57921780).

Almost surely, 2230307863 is an apocalyptic number.

230307863 is a deficient number, since it is larger than the sum of its proper divisors (1379257).

230307863 is a wasteful number, since it uses less digits than its factorization.

230307863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379256.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 230307863 is about 15175.8974363956. The cubic root of 230307863 is about 612.9658157459.

The spelling of 230307863 in words is "two hundred thirty million, three hundred seven thousand, eight hundred sixty-three".

Divisors: 1 167 1379089 230307863