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12304143400 = 235261520717
BaseRepresentation
bin10110111010110001…
…00101010000101000
31011202111102020122211
423131120211100220
5200144330042100
65352532254504
7613623331123
oct133530452050
934674366584
1012304143400
11524440605a
122474771434
131211183533
1484a18d3ba
154c02ec1ba
hex2dd625428

12304143400 has 24 divisors (see below), whose sum is σ = 28607133870. Its totient is φ = 4921657280.

The previous prime is 12304143359. The next prime is 12304143437. The reversal of 12304143400 is 434140321.

It can be written as a sum of positive squares in 3 ways, for example, as 9476243716 + 2827899684 = 97346^2 + 53178^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30760159 + ... + 30760558.

Almost surely, 212304143400 is an apocalyptic number.

12304143400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12304143400 is an abundant number, since it is smaller than the sum of its proper divisors (16302990470).

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

12304143400 is a wasteful number, since it uses less digits than its factorization.

12304143400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61520733 (or 61520724 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12304143400 its reverse (434140321), we get a palindrome (12738283721).

The spelling of 12304143400 in words is "twelve billion, three hundred four million, one hundred forty-three thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 61520717 123041434 246082868 307603585 492165736 615207170 1230414340 1538017925 2460828680 3076035850 6152071700 12304143400