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2131374090 = 23571045803
BaseRepresentation
bin111111100001010…
…0011000000001010
312111112120000121010
41333002203000022
513331112432330
6551254424350
7103550244426
oct17702430012
95445500533
102131374090
119a411799a
124b59620b6
1327c754401
141630d5b86
15c71b33b0
hex7f0a300a

2131374090 has 16 divisors (see below), whose sum is σ = 5115297888. Its totient is φ = 568366416.

The previous prime is 2131374083. The next prime is 2131374103. The reversal of 2131374090 is 904731312.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 71045803 = 2131374090 / (2 + 1 + 3 + 1 + 3 + 7 + 4 + 0 + 9 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35522872 + ... + 35522931.

It is an arithmetic number, because the mean of its divisors is an integer number (319706118).

Almost surely, 22131374090 is an apocalyptic number.

2131374090 is an abundant number, since it is smaller than the sum of its proper divisors (2983923798).

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

2131374090 is a wasteful number, since it uses less digits than its factorization.

2131374090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71045813.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 2131374090 is about 46166.8072320363. The cubic root of 2131374090 is about 1286.9249694693.

The spelling of 2131374090 in words is "two billion, one hundred thirty-one million, three hundred seventy-four thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 71045803 142091606 213137409 355229015 426274818 710458030 1065687045 2131374090