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252811300253 = 809312498517
BaseRepresentation
bin1110101101110010111…
…0100100110110011101
3220011112212001201001212
43223130232210312131
513120224143102003
6312050115314205
724156620411261
oct3533456446635
9804485051055
10252811300253
119824242a796
1240bb5bab965
131aabc644775
14c343d380a1
156899a36dd8
hex3adcba4d9d

252811300253 has 4 divisors (see below), whose sum is σ = 253123799580. Its totient is φ = 252498800928.

The previous prime is 252811300237. The next prime is 252811300267. The reversal of 252811300253 is 352003118252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87404783449 + 165406516804 = 295643^2 + 406702^2 .

It is a cyclic number.

It is not a de Polignac number, because 252811300253 - 24 = 252811300237 is a prime.

It is a super-2 number, since 2×2528113002532 (a number of 24 digits) 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 (252811300453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156248450 + ... + 156250067.

It is an arithmetic number, because the mean of its divisors is an integer number (63280949895).

Almost surely, 2252811300253 is an apocalyptic number.

It is an amenable number.

252811300253 is a deficient number, since it is larger than the sum of its proper divisors (312499327).

252811300253 is an equidigital number, since it uses as much as digits as its factorization.

252811300253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312499326.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 252811300253 in words is "two hundred fifty-two billion, eight hundred eleven million, three hundred thousand, two hundred fifty-three".

Divisors: 1 809 312498517 252811300253