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52323815 = 51931109163
BaseRepresentation
bin1100011110011…
…0010111100111
310122110022210002
43013212113213
5101343330230
65105251515
71203513365
oct307462747
9118408702
1052323815
1127598725
1215633b9b
13aac004b
146d40635
1548d8545
hex31e65e7

52323815 has 32 divisors (see below), whose sum is σ = 69273600. Its totient is φ = 37791360.

The previous prime is 52323811. The next prime is 52323823. The reversal of 52323815 is 51832325.

It is not a de Polignac number, because 52323815 - 22 = 52323811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52323811) 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, 320924 + ... + 321086.

It is an arithmetic number, because the mean of its divisors is an integer number (2164800).

Almost surely, 252323815 is an apocalyptic number.

52323815 is a deficient number, since it is larger than the sum of its proper divisors (16949785).

52323815 is a wasteful number, since it uses less digits than its factorization.

52323815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327.

The product of its digits is 7200, while the sum is 29.

The square root of 52323815 is about 7233.5202356806. The cubic root of 52323815 is about 374.0242842192.

The spelling of 52323815 in words is "fifty-two million, three hundred twenty-three thousand, eight hundred fifteen".

Divisors: 1 5 19 31 95 109 155 163 545 589 815 2071 2945 3097 3379 5053 10355 15485 16895 17767 25265 64201 88835 96007 321005 337573 480035 550777 1687865 2753885 10464763 52323815