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252302331 = 3821102437
BaseRepresentation
bin11110000100111…
…01001111111011
3122120202021201210
433002131033323
51004042133311
641011414203
76152351211
oct1702351773
9576667653
10252302331
1111a466526
12705b4363
134036a628
1425718cb1
151723b3a6
hexf09d3fb

252302331 has 8 divisors (see below), whose sum is σ = 336816144. Its totient is φ = 167995040.

The previous prime is 252302317. The next prime is 252302357. The reversal of 252302331 is 133203252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252302331 - 25 = 252302299 is a prime.

It is a super-2 number, since 2×2523023312 = 127312932456067122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252302298 and 252302307.

It is not an unprimeable number, because it can be changed into a prime (252302131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48756 + ... + 53681.

It is an arithmetic number, because the mean of its divisors is an integer number (42102018).

Almost surely, 2252302331 is an apocalyptic number.

252302331 is a deficient number, since it is larger than the sum of its proper divisors (84513813).

252302331 is a wasteful number, since it uses less digits than its factorization.

252302331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103261.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 252302331 is about 15884.0275434161. The cubic root of 252302331 is about 631.8884555519. Note that the first 3 decimals are identical.

Adding to 252302331 its reverse (133203252), we get a palindrome (385505583).

The spelling of 252302331 in words is "two hundred fifty-two million, three hundred two thousand, three hundred thirty-one".

Divisors: 1 3 821 2463 102437 307311 84100777 252302331