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230400311231 = 7355713734127
BaseRepresentation
bin1101011010010011101…
…1011011111110111111
3211000200222211111122102
43112210323123332333
512233324434424411
6253502222135315
722434351221666
oct3264473337677
9730628744572
10230400311231
1189791a72a62
12387a072153b
131895a60440c
14b219771ddd
155ed72c3d3b
hex35a4edbfbf

230400311231 has 16 divisors (see below), whose sum is σ = 234202938624. Its totient is φ = 226616027904.

The previous prime is 230400311179. The next prime is 230400311257. The reversal of 230400311231 is 132113004032.

It is a cyclic number.

It is not a de Polignac number, because 230400311231 - 226 = 230333202367 is a prime.

It is a super-2 number, since 2×2304003112312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230400301231) 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, 55825490 + ... + 55829616.

It is an arithmetic number, because the mean of its divisors is an integer number (14637683664).

Almost surely, 2230400311231 is an apocalyptic number.

230400311231 is a deficient number, since it is larger than the sum of its proper divisors (3802627393).

230400311231 is a wasteful number, since it uses less digits than its factorization.

230400311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6130.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 230400311231 its reverse (132113004032), we get a palindrome (362513315263).

The spelling of 230400311231 in words is "two hundred thirty billion, four hundred million, three hundred eleven thousand, two hundred thirty-one".

Divisors: 1 73 557 1373 4127 40661 100229 301271 764761 2298739 5666371 55827553 167807947 413645083 3156168647 230400311231