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252330531 = 3109771653
BaseRepresentation
bin11110000101001…
…00001000100011
3122120210201102020
433002210020203
51004044034111
641012152523
76152526345
oct1702441043
9576721366
10252330531
1111a485732
1270608743
134037a40b
1425725295
1517244906
hexf0a4223

252330531 has 8 divisors (see below), whose sum is σ = 339527760. Its totient is φ = 166676832.

The previous prime is 252330499. The next prime is 252330571. The reversal of 252330531 is 135033252.

It is a happy number.

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

It is not a de Polignac number, because 252330531 - 25 = 252330499 is a prime.

It is a super-3 number, since 3×2523305313 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (252330571) 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 7 ways as a sum of consecutive naturals, for example, 385500 + ... + 386153.

It is an arithmetic number, because the mean of its divisors is an integer number (42440970).

Almost surely, 2252330531 is an apocalyptic number.

252330531 is a deficient number, since it is larger than the sum of its proper divisors (87197229).

252330531 is a wasteful number, since it uses less digits than its factorization.

252330531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771765.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 252330531 is about 15884.9152027954. The cubic root of 252330531 is about 631.9119968730.

Adding to 252330531 its reverse (135033252), we get a palindrome (387363783).

The spelling of 252330531 in words is "two hundred fifty-two million, three hundred thirty thousand, five hundred thirty-one".

Divisors: 1 3 109 327 771653 2314959 84110177 252330531