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12083257 = 23525359
BaseRepresentation
bin101110000110…
…000000111001
3211201220010001
4232012000321
511043131012
61110553001
7204464104
oct56060071
924656101
1012083257
11690336a
124068761
132670b74
14186773b
1510da357
hexb86039

12083257 has 4 divisors (see below), whose sum is σ = 12608640. Its totient is φ = 11557876.

The previous prime is 12083237. The next prime is 12083293. The reversal of 12083257 is 75238021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12083257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12083207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262657 + ... + 262702.

It is an arithmetic number, because the mean of its divisors is an integer number (3152160).

Almost surely, 212083257 is an apocalyptic number.

It is an amenable number.

12083257 is a deficient number, since it is larger than the sum of its proper divisors (525383).

12083257 is an equidigital number, since it uses as much as digits as its factorization.

12083257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525382.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 12083257 is about 3476.0979560421. The cubic root of 12083257 is about 229.4711035491.

It can be divided in two parts, 1208 and 3257, that added together give a triangular number (4465 = T94).

The spelling of 12083257 in words is "twelve million, eighty-three thousand, two hundred fifty-seven".

Divisors: 1 23 525359 12083257