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12575109 = 319972099
BaseRepresentation
bin101111111110…
…000110000101
3212122212210210
4233332012011
511204400414
61125310033
7211613061
oct57760605
925585723
1012575109
117109958
124265319
1327b39c1
141954aa1
151185e59
hexbfe185

12575109 has 8 divisors (see below), whose sum is σ = 16783200. Its totient is φ = 8375216.

The previous prime is 12575099. The next prime is 12575113. The reversal of 12575109 is 90157521.

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

It is a cyclic number.

It is not a de Polignac number, because 12575109 - 27 = 12574981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12575149) 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, 4942 + ... + 7040.

It is an arithmetic number, because the mean of its divisors is an integer number (2097900).

Almost surely, 212575109 is an apocalyptic number.

It is an amenable number.

12575109 is a deficient number, since it is larger than the sum of its proper divisors (4208091).

12575109 is a wasteful number, since it uses less digits than its factorization.

12575109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099.

The product of its (nonzero) digits is 3150, while the sum is 30.

The square root of 12575109 is about 3546.1400141562. The cubic root of 12575109 is about 232.5433472190.

The spelling of 12575109 in words is "twelve million, five hundred seventy-five thousand, one hundred nine".

Divisors: 1 3 1997 2099 5991 6297 4191703 12575109