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52351013 = 11213231447
BaseRepresentation
bin1100011110110…
…1000000100101
310122111201002102
43013231000211
5101400213023
65110021445
71203655601
oct307550045
9118451072
1052351013
1127607100
1215647885
13aacc540
146d4a501
1548e1628
hex31ed025

52351013 has 24 divisors (see below), whose sum is σ = 64708224. Its totient is φ = 41991840.

The previous prime is 52350983. The next prime is 52351021. The reversal of 52351013 is 31015325.

It is not a de Polignac number, because 52351013 - 214 = 52334629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52351043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35456 + ... + 36902.

It is an arithmetic number, because the mean of its divisors is an integer number (2696176).

Almost surely, 252351013 is an apocalyptic number.

It is an amenable number.

52351013 is a deficient number, since it is larger than the sum of its proper divisors (12357211).

52351013 is a wasteful number, since it uses less digits than its factorization.

52351013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505 (or 1494 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 52351013 is about 7235.3999889433. The cubic root of 52351013 is about 374.0890791275.

Adding to 52351013 its reverse (31015325), we get a palindrome (83366338).

The spelling of 52351013 in words is "fifty-two million, three hundred fifty-one thousand, thirteen".

Divisors: 1 11 13 23 121 143 253 299 1447 1573 2783 3289 15917 18811 33281 36179 175087 206921 366091 432653 2276131 4027001 4759183 52351013