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12893653 = 54123833
BaseRepresentation
bin110001001011…
…110111010101
3220021001202201
4301023313111
511300044103
61140204501
7214410553
oct61136725
926231681
1012893653
117307213
124399731
1328959a6
1419d8bd3
1511ea51d
hexc4bdd5

12893653 has 4 divisors (see below), whose sum is σ = 12918028. Its totient is φ = 12869280.

The previous prime is 12893627. The next prime is 12893659. The reversal of 12893653 is 35639821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8538084 + 4355569 = 2922^2 + 2087^2 .

It is a cyclic number.

It is not a de Polignac number, because 12893653 - 29 = 12893141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12893659) 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, 11376 + ... + 12457.

It is an arithmetic number, because the mean of its divisors is an integer number (3229507).

Almost surely, 212893653 is an apocalyptic number.

It is an amenable number.

12893653 is a deficient number, since it is larger than the sum of its proper divisors (24375).

12893653 is an equidigital number, since it uses as much as digits as its factorization.

12893653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24374.

The product of its digits is 38880, while the sum is 37.

The square root of 12893653 is about 3590.7733150395. The cubic root of 12893653 is about 234.4905396080.

The spelling of 12893653 in words is "twelve million, eight hundred ninety-three thousand, six hundred fifty-three".

Divisors: 1 541 23833 12893653