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12890429125 = 53783177493
BaseRepresentation
bin11000000000101010…
…00101011011000101
31020021100121122110221
430000111011123011
5202344422213000
65531034344341
7634302561010
oct140025053305
936240548427
1012890429125
115515347212
1225b8b8b0b1
1312a5789a72
148a3da6377
15506a0b61a
hex3005456c5

12890429125 has 32 divisors (see below), whose sum is σ = 18607051008. Its totient is φ = 8732606400.

The previous prime is 12890429117. The next prime is 12890429147. The reversal of 12890429125 is 52192409821.

It is not a de Polignac number, because 12890429125 - 23 = 12890429117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16122 + ... + 161371.

It is an arithmetic number, because the mean of its divisors is an integer number (581470344).

Almost surely, 212890429125 is an apocalyptic number.

It is an amenable number.

12890429125 is a deficient number, since it is larger than the sum of its proper divisors (5716621883).

12890429125 is an equidigital number, since it uses as much as digits as its factorization.

12890429125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177598 (or 177588 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 12890429125 in words is "twelve billion, eight hundred ninety million, four hundred twenty-nine thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 83 125 175 415 581 875 2075 2905 10375 14525 72625 177493 887465 1242451 4437325 6212255 14731919 22186625 31061275 73659595 103123433 155306375 368297975 515617165 1841489875 2578085825 12890429125