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2130581208 = 233791113921
BaseRepresentation
bin111111011111110…
…0001011011011000
312111111001201222010
41332333201123120
513330412044313
6551225425520
7103540433010
oct17677413330
95444051863
102130581208
119a3726218
124b563b2a0
1327c537552
14162d6ac40
15c70a84c3
hex7efe16d8

2130581208 has 64 divisors (see below), whose sum is σ = 6094494720. Its totient is φ = 608025600.

The previous prime is 2130581183. The next prime is 2130581209. The reversal of 2130581208 is 8021850312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130581209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146088 + ... + 160008.

It is an arithmetic number, because the mean of its divisors is an integer number (95226480).

Almost surely, 22130581208 is an apocalyptic number.

2130581208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2130581208 is an abundant number, since it is smaller than the sum of its proper divisors (3963913512).

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

2130581208 is a wasteful number, since it uses less digits than its factorization.

2130581208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14848 (or 14844 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 2130581208 is about 46158.2192897430. The cubic root of 2130581208 is about 1286.7653687992.

The spelling of 2130581208 in words is "two billion, one hundred thirty million, five hundred eighty-one thousand, two hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 911 1822 2733 3644 5466 6377 7288 10932 12754 13921 19131 21864 25508 27842 38262 41763 51016 55684 76524 83526 97447 111368 153048 167052 194894 292341 334104 389788 584682 779576 1169364 2338728 12682031 25364062 38046093 50728124 76092186 88774217 101456248 152184372 177548434 266322651 304368744 355096868 532645302 710193736 1065290604 2130581208