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252122065 = 5137154631
BaseRepresentation
bin11110000011100…
…01001111010001
3122120102010110021
433001301033101
51004020401230
641003503441
76151000516
oct1701611721
9576363407
10252122065
1111a353048
1270527b81
1340306570
14256ad30d
1517202c7a
hexf0713d1

252122065 has 16 divisors (see below), whose sum is σ = 330414336. Its totient is φ = 183556800.

The previous prime is 252122047. The next prime is 252122083. The reversal of 252122065 is 560221252.

It is a happy number.

252122065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (252122047) and next prime (252122083).

It is not a de Polignac number, because 252122065 - 215 = 252089297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22701 + ... + 31930.

It is an arithmetic number, because the mean of its divisors is an integer number (20650896).

Almost surely, 2252122065 is an apocalyptic number.

It is an amenable number.

252122065 is a deficient number, since it is larger than the sum of its proper divisors (78292271).

252122065 is a wasteful number, since it uses less digits than its factorization.

252122065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54720.

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

The square root of 252122065 is about 15878.3520870398. The cubic root of 252122065 is about 631.7379282815.

The spelling of 252122065 in words is "two hundred fifty-two million, one hundred twenty-two thousand, sixty-five".

Divisors: 1 5 13 65 71 355 923 4615 54631 273155 710203 3551015 3878801 19394005 50424413 252122065