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12275147 = 891071289
BaseRepresentation
bin101110110100…
…110111001011
3212002122100002
4232310313023
511120301042
61115033215
7206223413
oct56646713
925078302
1012275147
116a24555
12413b80b
13270a301
1418b7643
151127132
hexbb4dcb

12275147 has 8 divisors (see below), whose sum is σ = 12538800. Its totient is φ = 12014464.

The previous prime is 12275143. The next prime is 12275177. The reversal of 12275147 is 74157221.

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 12275147 - 22 = 12275143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12275141) 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, 8879 + ... + 10167.

It is an arithmetic number, because the mean of its divisors is an integer number (1567350).

Almost surely, 212275147 is an apocalyptic number.

12275147 is a deficient number, since it is larger than the sum of its proper divisors (263653).

12275147 is a wasteful number, since it uses less digits than its factorization.

12275147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485.

The product of its digits is 3920, while the sum is 29.

The square root of 12275147 is about 3503.5905868123. The cubic root of 12275147 is about 230.6794464372.

The spelling of 12275147 in words is "twelve million, two hundred seventy-five thousand, one hundred forty-seven".

Divisors: 1 89 107 1289 9523 114721 137923 12275147