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123034213 = 373325249
BaseRepresentation
bin1110101010101…
…01101001100101
322120111210012201
413111111221211
5222444043323
620113014501
73022526221
oct725255145
9276453181
10123034213
11634a4475
1235254431
131c64a013
14124a9781
15ac048ad
hex7555a65

123034213 has 4 divisors (see below), whose sum is σ = 126359500. Its totient is φ = 119708928.

The previous prime is 123034201. The next prime is 123034231. The reversal of 123034213 is 312430321.

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 53027524 + 70006689 = 7282^2 + 8367^2 .

It is a cyclic number.

It is not a de Polignac number, because 123034213 - 213 = 123026021 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 (123034243) 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, 1662588 + ... + 1662661.

It is an arithmetic number, because the mean of its divisors is an integer number (31589875).

Almost surely, 2123034213 is an apocalyptic number.

It is an amenable number.

123034213 is a deficient number, since it is larger than the sum of its proper divisors (3325287).

123034213 is an equidigital number, since it uses as much as digits as its factorization.

123034213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325286.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 123034213 is about 11092.0788403256. The cubic root of 123034213 is about 497.3650895519.

Adding to 123034213 its reverse (312430321), we get a palindrome (435464534).

The spelling of 123034213 in words is "one hundred twenty-three million, thirty-four thousand, two hundred thirteen".

Divisors: 1 37 3325249 123034213