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252222115 = 5177937561
BaseRepresentation
bin11110000100010…
…01101010100011
3122120121012200211
433002021222203
51004032101430
641005554551
76151565305
oct1702115243
9576535624
10252222115
1111a411232
1270575a57
134033cc72
14256d7975
151722272a
hexf089aa3

252222115 has 16 divisors (see below), whose sum is σ = 324535680. Its totient is φ = 187499520.

The previous prime is 252222079. The next prime is 252222151. The reversal of 252222115 is 511222252.

It is an interprime number because it is at equal distance from previous prime (252222079) and next prime (252222151).

It is a de Polignac number, because none of the positive numbers 2k-252222115 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 12066 + ... + 25495.

It is an arithmetic number, because the mean of its divisors is an integer number (20283480).

Almost surely, 2252222115 is an apocalyptic number.

252222115 is a deficient number, since it is larger than the sum of its proper divisors (72313565).

252222115 is a wasteful number, since it uses less digits than its factorization.

252222115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37662.

The product of its digits is 800, while the sum is 22.

The square root of 252222115 is about 15881.5022904006. The cubic root of 252222115 is about 631.8214817525.

Adding to 252222115 its reverse (511222252), we get a palindrome (763444367).

The spelling of 252222115 in words is "two hundred fifty-two million, two hundred twenty-two thousand, one hundred fifteen".

Divisors: 1 5 17 79 85 395 1343 6715 37561 187805 638537 2967319 3192685 14836595 50444423 252222115