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230111331020 = 22531091370061
BaseRepresentation
bin1101011001001110110…
…1000100001011001100
3210222221212001210022122
43112103231010023030
512232232000043040
6253413420232112
722424242020044
oct3262355041314
9728855053278
10230111331020
118965393593a
123871b99b638
13189127943cc
14b1cd22a724
155ebbc401b5
hex3593b442cc

230111331020 has 24 divisors (see below), whose sum is σ = 483250643568. Its totient is φ = 92041323200.

The previous prime is 230111330983. The next prime is 230111331059. The reversal of 230111331020 is 20133111032.

It is a self number, because there is not a number n which added to its sum of digits gives 230111331020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436790 + ... + 806850.

It is an arithmetic number, because the mean of its divisors is an integer number (20135443482).

Almost surely, 2230111331020 is an apocalyptic number.

230111331020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230111331020 is an abundant number, since it is smaller than the sum of its proper divisors (253139312548).

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

230111331020 is a wasteful number, since it uses less digits than its factorization.

230111331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401161 (or 401159 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 230111331020 its reverse (20133111032), we get a palindrome (250244442052).

The spelling of 230111331020 in words is "two hundred thirty billion, one hundred eleven million, three hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 31091 62182 124364 155455 310910 370061 621820 740122 1480244 1850305 3700610 7401220 11505566551 23011133102 46022266204 57527832755 115055665510 230111331020