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252203779 = 1193211403
BaseRepresentation
bin11110000100001…
…01001100000011
3122120120021112201
433002011030003
51004031010104
641005334031
76151460662
oct1702051403
9576507481
10252203779
1111a3a9483
1270567317
1340334809
14256d0dd9
151721c0a4
hexf085303

252203779 has 4 divisors (see below), whose sum is σ = 252416376. Its totient is φ = 251991184.

The previous prime is 252203773. The next prime is 252203801. The reversal of 252203779 is 977302252.

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

It is a cyclic number.

It is not a de Polignac number, because 252203779 - 25 = 252203747 is a prime.

It is a super-2 number, since 2×2522037792 = 127213492283761682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252203773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104509 + ... + 106894.

It is an arithmetic number, because the mean of its divisors is an integer number (63104094).

Almost surely, 2252203779 is an apocalyptic number.

252203779 is a deficient number, since it is larger than the sum of its proper divisors (212597).

252203779 is a wasteful number, since it uses less digits than its factorization.

252203779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212596.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 252203779 is about 15880.9250045455. The cubic root of 252203779 is about 631.8061706983.

The spelling of 252203779 in words is "two hundred fifty-two million, two hundred three thousand, seven hundred seventy-nine".

Divisors: 1 1193 211403 252203779