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252753071 = 1831138041
BaseRepresentation
bin11110001000010…
…11010010101111
3122121121012000212
433010023102233
51004201044241
641025213035
76156236264
oct1704132257
9577535025
10252753071
1111a74413a
127079117b
134049783c
14257d526b
15172c9beb
hexf10b4af

252753071 has 4 divisors (see below), whose sum is σ = 252892944. Its totient is φ = 252613200.

The previous prime is 252753047. The next prime is 252753091. The reversal of 252753071 is 170357252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-252753071 is a prime.

It is a super-2 number, since 2×2527530712 = 127768229799862082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252753001) 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, 67190 + ... + 70851.

It is an arithmetic number, because the mean of its divisors is an integer number (63223236).

Almost surely, 2252753071 is an apocalyptic number.

252753071 is a deficient number, since it is larger than the sum of its proper divisors (139873).

252753071 is a wasteful number, since it uses less digits than its factorization.

252753071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139872.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 252753071 is about 15898.2096790802. The cubic root of 252753071 is about 632.2645228412.

The spelling of 252753071 in words is "two hundred fifty-two million, seven hundred fifty-three thousand, seventy-one".

Divisors: 1 1831 138041 252753071