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12490322289 = 35577474759
BaseRepresentation
bin10111010000111101…
…10011000101110001
31012020110202010002020
423220132303011301
5201040010303124
65423222542053
7621343662534
oct135036630561
935213663066
1012490322289
11532a509005
122506b97929
13124090b963
14866bb4a1b
154d1826379
hex2e87b3171

12490322289 has 8 divisors (see below), whose sum is σ = 16683664320. Its totient is φ = 8311930896.

The previous prime is 12490322269. The next prime is 12490322311. The reversal of 12490322289 is 98222309421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12490322289 - 29 = 12490321777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12490322289.

It is not an unprimeable number, because it can be changed into a prime (12490322219) 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, 3735709 + ... + 3739050.

It is an arithmetic number, because the mean of its divisors is an integer number (2085458040).

Almost surely, 212490322289 is an apocalyptic number.

It is an amenable number.

12490322289 is a deficient number, since it is larger than the sum of its proper divisors (4193342031).

12490322289 is an equidigital number, since it uses as much as digits as its factorization.

12490322289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7475319.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 12490322289 in words is "twelve billion, four hundred ninety million, three hundred twenty-two thousand, two hundred eighty-nine".

Divisors: 1 3 557 1671 7474759 22424277 4163440763 12490322289