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12500535430 = 252518815653
BaseRepresentation
bin10111010010001011…
…10000100010000110
31012021011221222212201
423221011300202012
5201100114113210
65424225505114
7621526540465
oct135105604206
935234858781
1012500535430
115335254319
12250a4a219a
131242a76536
148682b29dc
154d269253a
hex2e9170886

12500535430 has 32 divisors (see below), whose sum is σ = 22620251808. Its totient is φ = 4973760000.

The previous prime is 12500535407. The next prime is 12500535431. The reversal of 12500535430 is 3453500521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500535431) 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, 2208484 + ... + 2214136.

It is an arithmetic number, because the mean of its divisors is an integer number (706882869).

Almost surely, 212500535430 is an apocalyptic number.

12500535430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12500535430 is a deficient number, since it is larger than the sum of its proper divisors (10119716378).

12500535430 is a wasteful number, since it uses less digits than its factorization.

12500535430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6792.

The product of its (nonzero) digits is 9000, while the sum is 28.

The spelling of 12500535430 in words is "twelve billion, five hundred million, five hundred thirty-five thousand, four hundred thirty".

Divisors: 1 2 5 10 251 502 881 1255 1762 2510 4405 5653 8810 11306 28265 56530 221131 442262 1105655 1418903 2211310 2837806 4980293 7094515 9960586 14189030 24901465 49802930 1250053543 2500107086 6250267715 12500535430