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12130202432 = 26533576121
BaseRepresentation
bin10110100110000010…
…00011001101000000
31011022101010010111202
423103001003031000
5144320312434212
65323400200332
7606412006445
oct132301031500
934271103452
1012130202432
115165201697
1224264690a8
1311b412149a
148310319cc
154aedde0c2
hex2d3043340

12130202432 has 28 divisors (see below), whose sum is σ = 24525044676. Its totient is φ = 5950663680.

The previous prime is 12130202429. The next prime is 12130202459. The reversal of 12130202432 is 23420203121.

It can be written as a sum of positive squares in 2 ways, for example, as 8474307136 + 3655895296 = 92056^2 + 60464^2 .

It is a super-2 number, since 2×121302024322 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784669 + ... + 1791452.

Almost surely, 212130202432 is an apocalyptic number.

It is an amenable number.

12130202432 is an abundant number, since it is smaller than the sum of its proper divisors (12394842244).

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

12130202432 is an equidigital number, since it uses as much as digits as its factorization.

12130202432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576186 (or 3576176 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12130202432 its reverse (23420203121), we get a palindrome (35550405553).

The spelling of 12130202432 in words is "twelve billion, one hundred thirty million, two hundred two thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 32 53 64 106 212 424 848 1696 3392 3576121 7152242 14304484 28608968 57217936 114435872 189534413 228871744 379068826 758137652 1516275304 3032550608 6065101216 12130202432