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12547053 = 322948073
BaseRepresentation
bin101111110111…
…001111101101
3212121110022200
4233313033231
511203001203
61124532113
7211435221
oct57671755
925543280
1012547053
11709a872
124251039
1327a3cbc
141948781
15117c9a3
hexbf73ed

12547053 has 12 divisors (see below), whose sum is σ = 18748860. Its totient is φ = 8076096.

The previous prime is 12547009. The next prime is 12547057. The reversal of 12547053 is 35074521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8311689 + 4235364 = 2883^2 + 2058^2 .

It is not a de Polignac number, because 12547053 - 216 = 12481517 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 (12547057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23776 + ... + 24297.

It is an arithmetic number, because the mean of its divisors is an integer number (1562405).

Almost surely, 212547053 is an apocalyptic number.

It is an amenable number.

12547053 is a deficient number, since it is larger than the sum of its proper divisors (6201807).

12547053 is a wasteful number, since it uses less digits than its factorization.

12547053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48108 (or 48105 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 12547053 is about 3542.1819546714. The cubic root of 12547053 is about 232.3702779653.

The spelling of 12547053 in words is "twelve million, five hundred forty-seven thousand, fifty-three".

Divisors: 1 3 9 29 87 261 48073 144219 432657 1394117 4182351 12547053