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2145342683 = 11474149599
BaseRepresentation
bin111111111011111…
…0101010011011011
312112111211200220102
41333313311103123
513343201431213
6552514050015
7104110053251
oct17767652333
95474750812
102145342683
11a00a98790
124ba57990b
13282605453
14164cd05d1
15c8522158
hex7fdf54db

2145342683 has 8 divisors (see below), whose sum is σ = 2390169600. Its totient is φ = 1908815080.

The previous prime is 2145342679. The next prime is 2145342691. The reversal of 2145342683 is 3862435412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2145342683 - 22 = 2145342679 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145342643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2074283 + ... + 2075316.

It is an arithmetic number, because the mean of its divisors is an integer number (298771200).

Almost surely, 22145342683 is an apocalyptic number.

2145342683 is a deficient number, since it is larger than the sum of its proper divisors (244826917).

2145342683 is a wasteful number, since it uses less digits than its factorization.

2145342683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149657.

The product of its digits is 138240, while the sum is 38.

The square root of 2145342683 is about 46317.8441100188. The cubic root of 2145342683 is about 1289.7302648979.

The spelling of 2145342683 in words is "two billion, one hundred forty-five million, three hundred forty-two thousand, six hundred eighty-three".

Divisors: 1 11 47 517 4149599 45645589 195031153 2145342683