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23100243102 = 2321283346839
BaseRepresentation
bin10101100000111000…
…011011110010011110
32012121220011221021100
4111200320123302132
5334302130234402
614340114213530
71445305553346
oct254070336236
965556157240
1023100243102
119884537602
1245882842a6
132241a89501
141191d43d26
1590301171c
hex560e1bc9e

23100243102 has 12 divisors (see below), whose sum is σ = 50050526760. Its totient is φ = 7700081028.

The previous prime is 23100243053. The next prime is 23100243109. The reversal of 23100243102 is 20134200132.

23100243102 is a `hidden beast` number, since 231 + 0 + 0 + 2 + 431 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1283346839 = 23100243102 / (2 + 3 + 1 + 0 + 0 + 2 + 4 + 3 + 1 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23100243109) 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, 641673402 + ... + 641673437.

It is an arithmetic number, because the mean of its divisors is an integer number (4170877230).

Almost surely, 223100243102 is an apocalyptic number.

23100243102 is an abundant number, since it is smaller than the sum of its proper divisors (26950283658).

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

23100243102 is a wasteful number, since it uses less digits than its factorization.

23100243102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283346847 (or 1283346844 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23100243102 its reverse (20134200132), we get a palindrome (43234443234).

The spelling of 23100243102 in words is "twenty-three billion, one hundred million, two hundred forty-three thousand, one hundred two".

Divisors: 1 2 3 6 9 18 1283346839 2566693678 3850040517 7700081034 11550121551 23100243102