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252860001 = 384286667
BaseRepresentation
bin11110001001001…
…01011001100001
3122121210121201020
433010211121201
51004213010001
641031400053
76160163112
oct1704453141
9577717636
10252860001
1111a807509
1270823029
1340504404
1425822209
15172eb736
hexf125661

252860001 has 4 divisors (see below), whose sum is σ = 337146672. Its totient is φ = 168573332.

The previous prime is 252859993. The next prime is 252860011. The reversal of 252860001 is 100068252.

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 252860001 - 23 = 252859993 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252860011) 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, 42143331 + ... + 42143336.

It is an arithmetic number, because the mean of its divisors is an integer number (84286668).

Almost surely, 2252860001 is an apocalyptic number.

It is an amenable number.

252860001 is a deficient number, since it is larger than the sum of its proper divisors (84286671).

252860001 is an equidigital number, since it uses as much as digits as its factorization.

252860001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84286670.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 252860001 is about 15901.5722807526. The cubic root of 252860001 is about 632.3536724518.

The spelling of 252860001 in words is "two hundred fifty-two million, eight hundred sixty thousand, one".

Divisors: 1 3 84286667 252860001