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252803863 = 1322984919
BaseRepresentation
bin11110001000101…
…11101100010111
3122121200202201001
433010113230113
51004204210423
641030244131
76156540334
oct1704275427
9577622631
10252803863
1111a779314
12707b6647
13404b49b0
142580998b
15172d9cad
hexf117b17

252803863 has 8 divisors (see below), whose sum is σ = 273442400. Its totient is φ = 232335648.

The previous prime is 252803843. The next prime is 252803867. The reversal of 252803863 is 368308252.

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 252803863 - 213 = 252795671 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 (252803867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39483 + ... + 45436.

It is an arithmetic number, because the mean of its divisors is an integer number (34180300).

Almost surely, 2252803863 is an apocalyptic number.

252803863 is a deficient number, since it is larger than the sum of its proper divisors (20638537).

252803863 is a wasteful number, since it uses less digits than its factorization.

252803863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85161.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 252803863 is about 15899.8070114074. The cubic root of 252803863 is about 632.3068722491.

The spelling of 252803863 in words is "two hundred fifty-two million, eight hundred three thousand, eight hundred sixty-three".

Divisors: 1 13 229 2977 84919 1103947 19446451 252803863