Search a number
-
+
12802634 = 213492409
BaseRepresentation
bin110000110101…
…101001001010
3220002102220122
4300311221022
511234141014
61134223242
7213551315
oct60655112
926072818
1012802634
117254899
124354b22
132863430
1419b397c
1511cd58e
hexc35a4a

12802634 has 8 divisors (see below), whose sum is σ = 20681220. Its totient is φ = 5908896.

The previous prime is 12802631. The next prime is 12802681. The reversal of 12802634 is 43620821.

It can be written as a sum of positive squares in 2 ways, for example, as 11202409 + 1600225 = 3347^2 + 1265^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 492409 = 12802634 / (1 + 2 + 8 + 0 + 2 + 6 + 3 + 4).

It is not an unprimeable number, because it can be changed into a prime (12802631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246179 + ... + 246230.

Almost surely, 212802634 is an apocalyptic number.

12802634 is a deficient number, since it is larger than the sum of its proper divisors (7878586).

12802634 is a wasteful number, since it uses less digits than its factorization.

12802634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492424.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 12802634 is about 3578.0768577547. The cubic root of 12802634 is about 233.9374635039.

The spelling of 12802634 in words is "twelve million, eight hundred two thousand, six hundred thirty-four".

Divisors: 1 2 13 26 492409 984818 6401317 12802634