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4820004989 = 9914863779
BaseRepresentation
bin1000111110100101…
…10111000001111101
3110102220200121211022
410133102313001331
534332410124424
62114141233525
7230305236452
oct43722670175
913386617738
104820004989
1120538490a8
12b262628a5
135ba78a077
1433a209829
151d324e95e
hex11f4b707d

4820004989 has 4 divisors (see below), whose sum is σ = 4824869760. Its totient is φ = 4815140220.

The previous prime is 4820004983. The next prime is 4820005007. The reversal of 4820004989 is 9894000284.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2k-4820004989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4820004983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2430899 + ... + 2432880.

It is an arithmetic number, because the mean of its divisors is an integer number (1206217440).

Almost surely, 24820004989 is an apocalyptic number.

It is an amenable number.

4820004989 is a deficient number, since it is larger than the sum of its proper divisors (4864771).

4820004989 is an equidigital number, since it uses as much as digits as its factorization.

4820004989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4864770.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 4820004989 is about 69426.2557610592. The cubic root of 4820004989 is about 1689.2055354562.

The spelling of 4820004989 in words is "four billion, eight hundred twenty million, four thousand, nine hundred eighty-nine".

Divisors: 1 991 4863779 4820004989