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252235533 = 31129534973
BaseRepresentation
bin11110000100011…
…00111100001101
3122120121220002210
433002030330031
51004033014113
641010141033
76151652364
oct1702147415
9576556083
10252235533
1111a420320
1270581779
13403460c4
14256dc7db
15172266c3
hexf08cf0d

252235533 has 32 divisors (see below), whose sum is σ = 386778240. Its totient is φ = 144784640.

The previous prime is 252235531. The next prime is 252235537. The reversal of 252235533 is 335532252.

252235533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 252235533 - 21 = 252235531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252235533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252235531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48235 + ... + 53207.

It is an arithmetic number, because the mean of its divisors is an integer number (12086820).

Almost surely, 2252235533 is an apocalyptic number.

It is an amenable number.

252235533 is a deficient number, since it is larger than the sum of its proper divisors (134542707).

252235533 is a wasteful number, since it uses less digits than its factorization.

252235533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5069.

The product of its digits is 27000, while the sum is 30.

The square root of 252235533 is about 15881.9247259266. The cubic root of 252235533 is about 631.8326856740.

Adding to 252235533 its reverse (335532252), we get a palindrome (587767785).

The spelling of 252235533 in words is "two hundred fifty-two million, two hundred thirty-five thousand, five hundred thirty-three".

Divisors: 1 3 11 29 33 53 87 159 319 583 957 1537 1749 4611 4973 14919 16907 50721 54703 144217 164109 263569 432651 790707 1586387 2899259 4759161 7643501 8697777 22930503 84078511 252235533