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12828995 = 52565799
BaseRepresentation
bin110000111100…
…000101000011
3220010210001222
4300330011003
511241011440
61134545255
7214021214
oct60740503
926123058
1012828995
117272683
12436822b
13287242a
1419bd40b
1511d62b5
hexc3c143

12828995 has 4 divisors (see below), whose sum is σ = 15394800. Its totient is φ = 10263192.

The previous prime is 12828989. The next prime is 12828997. The reversal of 12828995 is 59982821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59982821 = 233257437.

It is a cyclic number.

It is not a de Polignac number, because 12828995 - 212 = 12824899 is a prime.

It is a super-2 number, since 2×128289952 = 329166225420050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12828997) 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, 1282895 + ... + 1282904.

It is an arithmetic number, because the mean of its divisors is an integer number (3848700).

Almost surely, 212828995 is an apocalyptic number.

12828995 is a deficient number, since it is larger than the sum of its proper divisors (2565805).

12828995 is an equidigital number, since it uses as much as digits as its factorization.

12828995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565804.

The product of its digits is 103680, while the sum is 44.

The square root of 12828995 is about 3581.7586462519. The cubic root of 12828995 is about 234.0979148025.

The spelling of 12828995 in words is "twelve million, eight hundred twenty-eight thousand, nine hundred ninety-five".

Divisors: 1 5 2565799 12828995