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252252061 = 435866327
BaseRepresentation
bin11110000100100…
…00111110011101
3122120122201202221
433002100332131
51004034031221
641010345341
76152051515
oct1702207635
9576581687
10252252061
1111a431786
127058b251
1340350799
1425704845
151722b541
hexf090f9d

252252061 has 4 divisors (see below), whose sum is σ = 258118432. Its totient is φ = 246385692.

The previous prime is 252252059. The next prime is 252252073. The reversal of 252252061 is 160252252.

It is a happy number.

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 252252061 - 21 = 252252059 is a prime.

It is a super-2 number, since 2×2522520612 = 127262204557495442, 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 (252252041) 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, 2933121 + ... + 2933206.

It is an arithmetic number, because the mean of its divisors is an integer number (64529608).

Almost surely, 2252252061 is an apocalyptic number.

It is an amenable number.

252252061 is a deficient number, since it is larger than the sum of its proper divisors (5866371).

252252061 is an equidigital number, since it uses as much as digits as its factorization.

252252061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5866370.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 252252061 is about 15882.4450573581. The cubic root of 252252061 is about 631.8464858741.

The spelling of 252252061 in words is "two hundred fifty-two million, two hundred fifty-two thousand, sixty-one".

Divisors: 1 43 5866327 252252061