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231242603699 = 3121132129443
BaseRepresentation
bin1101011101011100100…
…0100001110010110011
3211002212200202101200202
43113113020201302303
512242041101304244
6254121551305415
722464256462112
oct3272710416263
9732780671622
10231242603699
118a08446a838
123899681b26b
1318a62c74423
14b299589c79
15603620204e
hex35d7221cb3

231242603699 has 12 divisors (see below), whose sum is σ = 241057319688. Its totient is φ = 221802678720.

The previous prime is 231242603639. The next prime is 231242603701. The reversal of 231242603699 is 996306242132.

It is a de Polignac number, because none of the positive numbers 2k-231242603699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231242603639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 956129 + ... + 1173314.

It is an arithmetic number, because the mean of its divisors is an integer number (20088109974).

Almost surely, 2231242603699 is an apocalyptic number.

231242603699 is a deficient number, since it is larger than the sum of its proper divisors (9814715989).

231242603699 is a wasteful number, since it uses less digits than its factorization.

231242603699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129618 (or 2129587 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 47.

The spelling of 231242603699 in words is "two hundred thirty-one billion, two hundred forty-two million, six hundred three thousand, six hundred ninety-nine".

Divisors: 1 31 113 961 3503 108593 2129443 66012733 240627059 2046394723 7459438829 231242603699