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2042980999 = 10491947551
BaseRepresentation
bin111100111000101…
…0110101010000111
312021101020012001221
41321301112222013
513141000342444
6534420101211
7101425023553
oct17161265207
95241205057
102042980999
11959233954
12490234807
132673459c7
14155486863
15be552a84
hex79c56a87

2042980999 has 4 divisors (see below), whose sum is σ = 2044929600. Its totient is φ = 2041032400.

The previous prime is 2042980997. The next prime is 2042981077. The reversal of 2042980999 is 9990892402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2042980999 - 21 = 2042980997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042980991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972727 + ... + 974824.

It is an arithmetic number, because the mean of its divisors is an integer number (511232400).

Almost surely, 22042980999 is an apocalyptic number.

2042980999 is a deficient number, since it is larger than the sum of its proper divisors (1948601).

2042980999 is a wasteful number, since it uses less digits than its factorization.

2042980999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948600.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 2042980999 is about 45199.3473293586. The cubic root of 2042980999 is about 1268.8826013819.

The spelling of 2042980999 in words is "two billion, forty-two million, nine hundred eighty thousand, nine hundred ninety-nine".

Divisors: 1 1049 1947551 2042980999