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252193141 = 2271110983
BaseRepresentation
bin11110000100000…
…10100101110101
3122120112201221201
433002002211311
51004030140031
641005212501
76151414654
oct1702024565
9576481851
10252193141
1111a3a1492
1270561131
134032ca15
14256cb19b
1517218d61
hexf082975

252193141 has 4 divisors (see below), whose sum is σ = 253304352. Its totient is φ = 251081932.

The previous prime is 252193129. The next prime is 252193157. The reversal of 252193141 is 141391252.

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 a cyclic number.

It is not a de Polignac number, because 252193141 - 225 = 218638709 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 (252196141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555265 + ... + 555718.

It is an arithmetic number, because the mean of its divisors is an integer number (63326088).

Almost surely, 2252193141 is an apocalyptic number.

It is an amenable number.

252193141 is a deficient number, since it is larger than the sum of its proper divisors (1111211).

252193141 is a wasteful number, since it uses less digits than its factorization.

252193141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111210.

The product of its digits is 2160, while the sum is 28.

The square root of 252193141 is about 15880.5900709010. The cubic root of 252193141 is about 631.7972873414.

The spelling of 252193141 in words is "two hundred fifty-two million, one hundred ninety-three thousand, one hundred forty-one".

Divisors: 1 227 1110983 252193141