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2806678983 = 32340676507
BaseRepresentation
bin1010011101001010…
…1000010111000111
321020121021001202110
42213102220113013
521222002211413
61142300512103
7126360243363
oct24722502707
97217231673
102806678983
11121032a509
12663b4b633
133596282c4
141c8a822a3
151166088c3
hexa74a85c7

2806678983 has 8 divisors (see below), whose sum is σ = 3904944768. Its totient is φ = 1789766264.

The previous prime is 2806678981. The next prime is 2806679021. The reversal of 2806678983 is 3898766082.

2806678983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2806678983 - 21 = 2806678981 is a prime.

It is a super-2 number, since 2×28066789832 = 15754893827227828578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2806678981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20338185 + ... + 20338322.

It is an arithmetic number, because the mean of its divisors is an integer number (488118096).

Almost surely, 22806678983 is an apocalyptic number.

2806678983 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2806678983 is a deficient number, since it is larger than the sum of its proper divisors (1098265785).

2806678983 is a wasteful number, since it uses less digits than its factorization.

2806678983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40676533.

The product of its (nonzero) digits is 6967296, while the sum is 57.

The square root of 2806678983 is about 52978.0990882081. The cubic root of 2806678983 is about 1410.5795419546.

The spelling of 2806678983 in words is "two billion, eight hundred six million, six hundred seventy-eight thousand, nine hundred eighty-three".

Divisors: 1 3 23 69 40676507 122029521 935559661 2806678983