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52031318 = 2107243137
BaseRepresentation
bin1100011001111…
…0111101010110
310121220110112212
43012132331112
5101310000233
65055113422
71201154543
oct306367526
9117813485
1052031318
1127408999
1215512872
13aa19b81
146ca5bca
15487ba48
hex319ef56

52031318 has 8 divisors (see below), whose sum is σ = 78776712. Its totient is φ = 25772416.

The previous prime is 52031311. The next prime is 52031341. The reversal of 52031318 is 81313025.

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

It is a junction number, because it is equal to n+sod(n) for n = 52031293 and 52031302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52031311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121355 + ... + 121782.

It is an arithmetic number, because the mean of its divisors is an integer number (9847089).

Almost surely, 252031318 is an apocalyptic number.

52031318 is a deficient number, since it is larger than the sum of its proper divisors (26745394).

52031318 is a wasteful number, since it uses less digits than its factorization.

52031318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243246.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 52031318 is about 7213.2737366608. The cubic root of 52031318 is about 373.3260331977.

The spelling of 52031318 in words is "fifty-two million, thirty-one thousand, three hundred eighteen".

Divisors: 1 2 107 214 243137 486274 26015659 52031318