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252546213 = 384182071
BaseRepresentation
bin11110000110110…
…00110010100101
3122121012200021110
433003120302211
51004122434323
641020535233
76154415223
oct1703306245
9577180243
10252546213
1111a612787
12706b1519
134042463a
142577db13
1517288793
hexf0d8ca5

252546213 has 4 divisors (see below), whose sum is σ = 336728288. Its totient is φ = 168364140.

The previous prime is 252546199. The next prime is 252546227. The reversal of 252546213 is 312645252.

252546213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (252546199) and next prime (252546227).

It is not a de Polignac number, because 252546213 - 26 = 252546149 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 (252546263) 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, 42091033 + ... + 42091038.

It is an arithmetic number, because the mean of its divisors is an integer number (84182072).

Almost surely, 2252546213 is an apocalyptic number.

It is an amenable number.

252546213 is a deficient number, since it is larger than the sum of its proper divisors (84182075).

252546213 is an equidigital number, since it uses as much as digits as its factorization.

252546213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84182074.

The product of its digits is 14400, while the sum is 30.

The square root of 252546213 is about 15891.7026463498. The cubic root of 252546213 is about 632.0919899280.

The spelling of 252546213 in words is "two hundred fifty-two million, five hundred forty-six thousand, two hundred thirteen".

Divisors: 1 3 84182071 252546213