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252206943 = 384068981
BaseRepresentation
bin11110000100001…
…01111101011111
3122120120102212220
433002011331133
51004031110233
641005400423
76151503132
oct1702057537
9576512786
10252206943
1111a40089a
1270569113
13403360a1
14256d2219
151721ceb3
hexf085f5f

252206943 has 4 divisors (see below), whose sum is σ = 336275928. Its totient is φ = 168137960.

The previous prime is 252206923. The next prime is 252206959. The reversal of 252206943 is 349602252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252206943 - 217 = 252075871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252206923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42034488 + ... + 42034493.

It is an arithmetic number, because the mean of its divisors is an integer number (84068982).

Almost surely, 2252206943 is an apocalyptic number.

252206943 is a deficient number, since it is larger than the sum of its proper divisors (84068985).

252206943 is an equidigital number, since it uses as much as digits as its factorization.

252206943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84068984.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 252206943 is about 15881.0246205967. The cubic root of 252206943 is about 631.8088127765.

The spelling of 252206943 in words is "two hundred fifty-two million, two hundred six thousand, nine hundred forty-three".

Divisors: 1 3 84068981 252206943