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124224213 = 341408071
BaseRepresentation
bin1110110011110…
…00001011010101
322122202020120210
413121320023111
5223300133323
620154320033
73035613501
oct731701325
9278666523
10124224213
1164137543
1235729019
131c975869
14126d9301
15ad8c293
hex76782d5

124224213 has 4 divisors (see below), whose sum is σ = 165632288. Its totient is φ = 82816140.

The previous prime is 124224203. The next prime is 124224229. The reversal of 124224213 is 312422421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 124224213 - 25 = 124224181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124224213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124224203) 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, 20704033 + ... + 20704038.

It is an arithmetic number, because the mean of its divisors is an integer number (41408072).

Almost surely, 2124224213 is an apocalyptic number.

It is an amenable number.

124224213 is a deficient number, since it is larger than the sum of its proper divisors (41408075).

124224213 is an equidigital number, since it uses as much as digits as its factorization.

124224213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41408074.

The product of its digits is 768, while the sum is 21.

The square root of 124224213 is about 11145.5916397471. The cubic root of 124224213 is about 498.9634700294.

Adding to 124224213 its reverse (312422421), we get a palindrome (436646634).

The spelling of 124224213 in words is "one hundred twenty-four million, two hundred twenty-four thousand, two hundred thirteen".

Divisors: 1 3 41408071 124224213