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231043002 = 231919310501
BaseRepresentation
bin11011100010101…
…10111110111010
3121002202012102020
431301112332322
5433121334002
634532015310
75503555521
oct1561267672
9532665366
10231043002
11109466033
1265461536
1338b35c48
14229834b8
151543c2bc
hexdc56fba

231043002 has 32 divisors (see below), whose sum is σ = 488973120. Its totient is φ = 72576000.

The previous prime is 231042991. The next prime is 231043003. The reversal of 231043002 is 200340132.

It is not an unprimeable number, because it can be changed into a prime (231043003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16752 + ... + 27252.

It is an arithmetic number, because the mean of its divisors is an integer number (15280410).

Almost surely, 2231043002 is an apocalyptic number.

231043002 is an abundant number, since it is smaller than the sum of its proper divisors (257930118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231043002 is a wasteful number, since it uses less digits than its factorization.

231043002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10718.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 231043002 is about 15200.0987496792. The cubic root of 231043002 is about 613.6173153913.

Adding to 231043002 its reverse (200340132), we get a palindrome (431383134).

It can be divided in two parts, 23104 and 3002, that added together give a triangular number (26106 = T228).

The spelling of 231043002 in words is "two hundred thirty-one million, forty-three thousand, two".

Divisors: 1 2 3 6 19 38 57 114 193 386 579 1158 3667 7334 10501 11001 21002 22002 31503 63006 199519 399038 598557 1197114 2026693 4053386 6080079 12160158 38507167 77014334 115521501 231043002