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12031023102 = 237972953123
BaseRepresentation
bin10110011010001101…
…01101011111111110
31011001110111022001020
423031012231133332
5144114420214402
65305454325010
7604066003050
oct131506553776
934043438036
1012031023102
1151142207aa
1223b91b9766
1311997073a7
14821bb58d0
154a634c8bc
hex2cd1ad7fe

12031023102 has 32 divisors (see below), whose sum is σ = 27782990592. Its totient is φ = 3401996544.

The previous prime is 12031023083. The next prime is 12031023133. The reversal of 12031023102 is 20132013021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1472488 + ... + 1480635.

It is an arithmetic number, because the mean of its divisors is an integer number (868218456).

Almost surely, 212031023102 is an apocalyptic number.

12031023102 is an abundant number, since it is smaller than the sum of its proper divisors (15751967490).

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

12031023102 is a wasteful number, since it uses less digits than its factorization.

12031023102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953232.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12031023102 its reverse (20132013021), we get a palindrome (32163036123).

The spelling of 12031023102 in words is "twelve billion, thirty-one million, twenty-three thousand, one hundred two".

Divisors: 1 2 3 6 7 14 21 42 97 194 291 582 679 1358 2037 4074 2953123 5906246 8859369 17718738 20671861 41343722 62015583 124031166 286452931 572905862 859358793 1718717586 2005170517 4010341034 6015511551 12031023102