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12142434180 = 2235202373903
BaseRepresentation
bin10110100111011111…
…01101011110000100
31011100020010120022110
423103233231132010
5144331430343210
65324514301020
7606620662512
oct132357553604
934306116273
1012142434180
1151710a6578
12242a587770
1311b6814ac6
148328d74b2
154b1008420
hex2d3bed784

12142434180 has 24 divisors (see below), whose sum is σ = 33998815872. Its totient is φ = 3237982432.

The previous prime is 12142434179. The next prime is 12142434181. The reversal of 12142434180 is 8143424121.

It is an interprime number because it is at equal distance from previous prime (12142434179) and next prime (12142434181).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12142434181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101186892 + ... + 101187011.

It is an arithmetic number, because the mean of its divisors is an integer number (1416617328).

Almost surely, 212142434180 is an apocalyptic number.

12142434180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12142434180 is an abundant number, since it is smaller than the sum of its proper divisors (21856381692).

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

12142434180 is a wasteful number, since it uses less digits than its factorization.

12142434180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202373915 (or 202373913 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The spelling of 12142434180 in words is "twelve billion, one hundred forty-two million, four hundred thirty-four thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 202373903 404747806 607121709 809495612 1011869515 1214243418 2023739030 2428486836 3035608545 4047478060 6071217090 12142434180