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5780919 = 31926973
BaseRepresentation
bin10110000011010110110111
3101212200221010
4112003112313
52434442134
6323523303
7100064664
oct26032667
911780833
105780919
113299321
121b29533
131275381
14aa6a6b
15792ce9
hex5835b7

5780919 has 4 divisors (see below), whose sum is σ = 7707896. Its totient is φ = 3853944.

The previous prime is 5780893. The next prime is 5780923. The reversal of 5780919 is 9190875.

It is a happy number.

5780919 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.

It is a de Polignac number, because none of the positive numbers 2k-5780919 is a prime.

It is a super-2 number, since 2×57809192 = 66838048969122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5780939) 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 3 ways as a sum of consecutive naturals, for example, 963484 + ... + 963489.

It is an arithmetic number, because the mean of its divisors is an integer number (1926974).

Almost surely, 25780919 is an apocalyptic number.

5780919 is a deficient number, since it is larger than the sum of its proper divisors (1926977).

5780919 is a wasteful number, since it uses less digits than its factorization.

5780919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926976.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 5780919 is about 2404.3541752412. The cubic root of 5780919 is about 179.4729334866.

The spelling of 5780919 in words is "five million, seven hundred eighty thousand, nine hundred nineteen".

Divisors: 1 3 1926973 5780919