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2135315838 = 231720934469
BaseRepresentation
bin111111101000110…
…0101010101111110
312111210222021122210
41333101211111332
513333120101323
6551515121250
7103625612415
oct17721452576
95453867583
102135315838
119a636a437
124b7143226
132805045c6
1416384047c
15c76e1293
hex7f46557e

2135315838 has 16 divisors (see below), whose sum is σ = 4521845520. Its totient is φ = 669902976.

The previous prime is 2135315827. The next prime is 2135315863. The reversal of 2135315838 is 8385135312.

It is a junction number, because it is equal to n+sod(n) for n = 2135315796 and 2135315805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10467133 + ... + 10467336.

It is an arithmetic number, because the mean of its divisors is an integer number (282615345).

Almost surely, 22135315838 is an apocalyptic number.

2135315838 is an abundant number, since it is smaller than the sum of its proper divisors (2386529682).

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

2135315838 is a wasteful number, since it uses less digits than its factorization.

2135315838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20934491.

The product of its digits is 86400, while the sum is 39.

The square root of 2135315838 is about 46209.4777940630. The cubic root of 2135315838 is about 1287.7178241818.

The spelling of 2135315838 in words is "two billion, one hundred thirty-five million, three hundred fifteen thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 17 34 51 102 20934469 41868938 62803407 125606814 355885973 711771946 1067657919 2135315838