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520125252 = 22353978431
BaseRepresentation
bin11111000000000…
…111101101000100
31100020201002201020
4133000013231010
52031123002002
6123340031140
715613664103
oct3700075504
91306632636
10520125252
11247662889
121262324b0
13839b052a
144d11403a
15309e12bc
hex1f007b44

520125252 has 48 divisors (see below), whose sum is σ = 1249420032. Its totient is φ = 168330240.

The previous prime is 520125239. The next prime is 520125257. The reversal of 520125252 is 252521025.

It is not an unprimeable number, because it can be changed into a prime (520125257) by changing a digit.

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, 57477 + ... + 65907.

It is an arithmetic number, because the mean of its divisors is an integer number (26029584).

Almost surely, 2520125252 is an apocalyptic number.

It is an amenable number.

520125252 is an abundant number, since it is smaller than the sum of its proper divisors (729294780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520125252 is a wasteful number, since it uses less digits than its factorization.

520125252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8588 (or 8586 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 520125252 is about 22806.2546684018. The cubic root of 520125252 is about 804.2097111427.

Adding to 520125252 its reverse (252521025), we get a palindrome (772646277).

The spelling of 520125252 in words is "five hundred twenty million, one hundred twenty-five thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 53 97 106 159 194 212 291 318 388 582 636 1164 5141 8431 10282 15423 16862 20564 25293 30846 33724 50586 61692 101172 446843 817807 893686 1340529 1635614 1787372 2453421 2681058 3271228 4906842 5362116 9813684 43343771 86687542 130031313 173375084 260062626 520125252