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230771563 = 1121907203
BaseRepresentation
bin11011100000101…
…00101101101011
3121002020102001221
431300110231223
5433034142223
634522122511
75501345251
oct1560245553
9532212057
10230771563
111092a0100
1265350437
1338a6c529
14229125d1
15153d6b5d
hexdc14b6b

230771563 has 6 divisors (see below), whose sum is σ = 253658132. Its totient is φ = 209792220.

The previous prime is 230771557. The next prime is 230771579. The reversal of 230771563 is 365177032.

It is not a de Polignac number, because 230771563 - 213 = 230763371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230771503) 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, 953481 + ... + 953722.

Almost surely, 2230771563 is an apocalyptic number.

230771563 is a deficient number, since it is larger than the sum of its proper divisors (22886569).

230771563 is a wasteful number, since it uses less digits than its factorization.

230771563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907225 (or 1907214 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 230771563 is about 15191.1672691732. The cubic root of 230771563 is about 613.3769201131.

The spelling of 230771563 in words is "two hundred thirty million, seven hundred seventy-one thousand, five hundred sixty-three".

Divisors: 1 11 121 1907203 20979233 230771563