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252047611 = 7319118077
BaseRepresentation
bin11110000010111…
…11000011111011
3122120021100022201
433001133003323
51004011010421
641002131031
76150240454
oct1701370373
9576240281
10252047611
1111a302112
12704b0a77
13402ab6ca
142569012b
15171dab91
hexf05f0fb

252047611 has 8 divisors (see below), whose sum is σ = 256852224. Its totient is φ = 247279680.

The previous prime is 252047603. The next prime is 252047617. The reversal of 252047611 is 116740252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252047611 - 23 = 252047603 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 252047611.

It is not an unprimeable number, because it can be changed into a prime (252047617) 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 7 ways as a sum of consecutive naturals, for example, 4905 + ... + 22981.

It is an arithmetic number, because the mean of its divisors is an integer number (32106528).

Almost surely, 2252047611 is an apocalyptic number.

252047611 is a deficient number, since it is larger than the sum of its proper divisors (4804613).

252047611 is a wasteful number, since it uses less digits than its factorization.

252047611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18341.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 252047611 is about 15876.0074011069. The cubic root of 252047611 is about 631.6757361227.

Adding to 252047611 its reverse (116740252), we get a palindrome (368787863).

The spelling of 252047611 in words is "two hundred fifty-two million, forty-seven thousand, six hundred eleven".

Divisors: 1 73 191 13943 18077 1319621 3452707 252047611