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252286222 = 21767110749
BaseRepresentation
bin11110000100110…
…01010100001110
3122120201110122011
433002121110032
51004041124342
641011211434
76152253226
oct1702312416
9576643564
10252286222
1111a455411
12705a6b7a
13403631b6
1425713086
1517236717
hexf09950e

252286222 has 16 divisors (see below), whose sum is σ = 406674000. Its totient is φ = 116949888.

The previous prime is 252286213. The next prime is 252286261. The reversal of 252286222 is 222682252.

It is a super-2 number, since 2×2522862222 = 127296675622066568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 53097 + ... + 57652.

It is an arithmetic number, because the mean of its divisors is an integer number (25417125).

Almost surely, 2252286222 is an apocalyptic number.

252286222 is a deficient number, since it is larger than the sum of its proper divisors (154387778).

252286222 is a wasteful number, since it uses less digits than its factorization.

252286222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110835.

The product of its digits is 15360, while the sum is 31.

The square root of 252286222 is about 15883.5204536022. The cubic root of 252286222 is about 631.8750069936.

The spelling of 252286222 in words is "two hundred fifty-two million, two hundred eighty-six thousand, two hundred twenty-two".

Divisors: 1 2 17 34 67 134 1139 2278 110749 221498 1882733 3765466 7420183 14840366 126143111 252286222