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12020223102 = 2312721174761
BaseRepresentation
bin10110011000111011…
…00000110001111110
31011000201011121020020
423030131200301332
5144104134114402
65304431033010
7603605132136
oct131435406176
934021147206
1012020223102
115109114588
1223b566b766
1311973c5664
148205a3ac6
154a54178bc
hex2cc760c7e

12020223102 has 32 divisors (see below), whose sum is σ = 24344899584. Its totient is φ = 3956299200.

The previous prime is 12020223073. The next prime is 12020223109. The reversal of 12020223102 is 20132202021.

It is a happy number.

It is a super-3 number, since 3×120202231023 (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020223109) 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, 123402 + ... + 198162.

It is an arithmetic number, because the mean of its divisors is an integer number (760778112).

Almost surely, 212020223102 is an apocalyptic number.

12020223102 is an abundant number, since it is smaller than the sum of its proper divisors (12324676482).

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

12020223102 is a wasteful number, since it uses less digits than its factorization.

12020223102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75104.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12020223102 its reverse (20132202021), we get a palindrome (32152425123).

The spelling of 12020223102 in words is "twelve billion, twenty million, two hundred twenty-three thousand, one hundred two".

Divisors: 1 2 3 6 127 211 254 381 422 633 762 1266 26797 53594 74761 80391 149522 160782 224283 448566 9494647 15774571 18989294 28483941 31549142 47323713 56967882 94647426 2003370517 4006741034 6010111551 12020223102