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2081136790 = 25436018053
BaseRepresentation
bin111110000001011…
…1010000010010110
312101001000200222101
41330002322002112
513230232334130
6542301552314
7102400241125
oct17402720226
95331020871
102081136790
11978824967
124a0b7569a
13272214cb5
1415a579abc
15c2a8d1ca
hex7c0ba096

2081136790 has 32 divisors (see below), whose sum is σ = 3840018336. Its totient is φ = 811641600.

The previous prime is 2081136769. The next prime is 2081136791. The reversal of 2081136790 is 976311802.

It is a super-2 number, since 2×20811367902 = 8662260677383008200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081136791) 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, 254404 + ... + 262456.

It is an arithmetic number, because the mean of its divisors is an integer number (120000573).

Almost surely, 22081136790 is an apocalyptic number.

2081136790 is a deficient number, since it is larger than the sum of its proper divisors (1758881546).

2081136790 is a wasteful number, since it uses less digits than its factorization.

2081136790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8704.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 2081136790 is about 45619.4781864063. The cubic root of 2081136790 is about 1276.7333676457.

The spelling of 2081136790 in words is "two billion, eighty-one million, one hundred thirty-six thousand, seven hundred ninety".

Divisors: 1 2 5 10 43 86 215 430 601 1202 3005 6010 8053 16106 25843 40265 51686 80530 129215 258430 346279 692558 1731395 3462790 4839853 9679706 24199265 48398530 208113679 416227358 1040568395 2081136790