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12000120102 = 2321574246327
BaseRepresentation
bin10110010110100001…
…10100110100100110
31010222022100021002200
423023100310310212
5144034012320402
65302432115330
7603242223615
oct131320646446
933868307080
1012000120102
1150a8833933
1223aa995b46
1311931a73a9
1481ba4d87c
154a379621c
hex2cb434d26

12000120102 has 24 divisors (see below), whose sum is σ = 26165873136. Its totient is φ = 3974561136.

The previous prime is 12000120101. The next prime is 12000120161. The reversal of 12000120102 is 20102100021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000120101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2120338 + ... + 2125989.

It is an arithmetic number, because the mean of its divisors is an integer number (1090244714).

Almost surely, 212000120102 is an apocalyptic number.

12000120102 is an abundant number, since it is smaller than the sum of its proper divisors (14165753034).

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

12000120102 is a wasteful number, since it uses less digits than its factorization.

12000120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4246492 (or 4246489 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12000120102 its reverse (20102100021), we get a palindrome (32102220123).

The spelling of 12000120102 in words is "twelve billion, one hundred twenty thousand, one hundred two".

Divisors: 1 2 3 6 9 18 157 314 471 942 1413 2826 4246327 8492654 12738981 25477962 38216943 76433886 666673339 1333346678 2000020017 4000040034 6000060051 12000120102