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12850829 = 44928621
BaseRepresentation
bin110001000001…
…011010001101
3220011220000122
4301001122031
511242211304
61135234325
7214141655
oct61013215
926156018
1012850829
117288022
1243789a5
13287c354
1419c7365
1511dc9be
hexc4168d

12850829 has 4 divisors (see below), whose sum is σ = 12879900. Its totient is φ = 12821760.

The previous prime is 12850811. The next prime is 12850853. The reversal of 12850829 is 92805821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92805821 = 311298411.

It can be written as a sum of positive squares in 2 ways, for example, as 2896804 + 9954025 = 1702^2 + 3155^2 .

It is a cyclic number.

It is not a de Polignac number, because 12850829 - 28 = 12850573 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 (12850879) 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, 13862 + ... + 14759.

It is an arithmetic number, because the mean of its divisors is an integer number (3219975).

Almost surely, 212850829 is an apocalyptic number.

It is an amenable number.

12850829 is a deficient number, since it is larger than the sum of its proper divisors (29071).

12850829 is an equidigital number, since it uses as much as digits as its factorization.

12850829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29070.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 12850829 is about 3584.8052945732. The cubic root of 12850829 is about 234.2306453068.

The spelling of 12850829 in words is "twelve million, eight hundred fifty thousand, eight hundred twenty-nine".

Divisors: 1 449 28621 12850829