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5817993 = 31939331
BaseRepresentation
bin10110001100011010001001
3101221120210020
4112030122021
52442133433
6324411053
7100311036
oct26143211
911846706
105817993
113314165
121b46a89
1312891cc
14ab638d
1579dcb3
hex58c689

5817993 has 4 divisors (see below), whose sum is σ = 7757328. Its totient is φ = 3878660.

The previous prime is 5817967. The next prime is 5818013. The reversal of 5817993 is 3997185.

It is a happy number.

5817993 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5817993 - 217 = 5686921 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (5817913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 969663 + ... + 969668.

It is an arithmetic number, because the mean of its divisors is an integer number (1939332).

Almost surely, 25817993 is an apocalyptic number.

It is an amenable number.

5817993 is a deficient number, since it is larger than the sum of its proper divisors (1939335).

5817993 is a wasteful number, since it uses less digits than its factorization.

5817993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939334.

The product of its digits is 68040, while the sum is 42.

The square root of 5817993 is about 2412.0516163631. The cubic root of 5817993 is about 179.8557795396.

The spelling of 5817993 in words is "five million, eight hundred seventeen thousand, nine hundred ninety-three".

Divisors: 1 3 1939331 5817993