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5780971 = 72117979
BaseRepresentation
bin10110000011010111101011
3101212201000001
4112003113223
52434442341
6323523431
7100065100
oct26032753
911781001
105780971
113299369
121b29577
1312753c1
14aa6aa7
15792d31
hex5835eb

5780971 has 6 divisors (see below), whose sum is σ = 6724860. Its totient is φ = 4955076.

The previous prime is 5780939. The next prime is 5780987. The reversal of 5780971 is 1790875.

It is not a de Polignac number, because 5780971 - 25 = 5780939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5780971.

It is not an unprimeable number, because it can be changed into a prime (5780771) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 58941 + ... + 59038.

It is an arithmetic number, because the mean of its divisors is an integer number (1120810).

Almost surely, 25780971 is an apocalyptic number.

5780971 is a deficient number, since it is larger than the sum of its proper divisors (943889).

5780971 is a wasteful number, since it uses less digits than its factorization.

5780971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117993 (or 117986 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 5780971 is about 2404.3649889316. The cubic root of 5780971 is about 179.4734716112.

The spelling of 5780971 in words is "five million, seven hundred eighty thousand, nine hundred seventy-one".

Divisors: 1 7 49 117979 825853 5780971