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12950009 = 43457659
BaseRepresentation
bin110001011001…
…100111111001
3220100221001222
4301121213321
511303400014
61141321425
7215034062
oct61314771
926327058
1012950009
117345596
124406275
1328b5537
141a11569
15120c08e
hexc599f9

12950009 has 8 divisors (see below), whose sum is σ = 13300320. Its totient is φ = 12602016.

The previous prime is 12949997. The next prime is 12950017. The reversal of 12950009 is 90005921.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12950009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12950009.

It is not an unprimeable number, because it can be changed into a prime (12950029) 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, 19322 + ... + 19980.

It is an arithmetic number, because the mean of its divisors is an integer number (1662540).

Almost surely, 212950009 is an apocalyptic number.

It is an amenable number.

12950009 is a deficient number, since it is larger than the sum of its proper divisors (350311).

12950009 is an equidigital number, since it uses as much as digits as its factorization.

12950009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 12950009 is about 3598.6120935716. The cubic root of 12950009 is about 234.8316827018.

The spelling of 12950009 in words is "twelve million, nine hundred fifty thousand, nine".

Divisors: 1 43 457 659 19651 28337 301163 12950009