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2020200019 = 19511035469
BaseRepresentation
bin111100001101001…
…1100111001010011
312012210100210102221
41320122130321103
513114132400034
6532243521511
7101030262655
oct17032347123
95183323387
102020200019
119473941a2
12484689297
132626ca836
141524366d5
15bc552bb4
hex7869ce53

2020200019 has 4 divisors (see below), whose sum is σ = 2021237440. Its totient is φ = 2019162600.

The previous prime is 2020199977. The next prime is 2020200031. The reversal of 2020200019 is 9100020202.

It is a happy number.

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 2020200019 - 213 = 2020191827 is a prime.

It is a super-2 number, since 2×20202000192 = 8162416233535200722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020199975 and 2020200011.

It is not an unprimeable number, because it can be changed into a prime (2020200619) 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, 515784 + ... + 519685.

It is an arithmetic number, because the mean of its divisors is an integer number (505309360).

Almost surely, 22020200019 is an apocalyptic number.

2020200019 is a deficient number, since it is larger than the sum of its proper divisors (1037421).

2020200019 is a wasteful number, since it uses less digits than its factorization.

2020200019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037420.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2020200019 is about 44946.6352355769. The cubic root of 2020200019 is about 1264.1485871481.

The spelling of 2020200019 in words is "two billion, twenty million, two hundred thousand, nineteen".

Divisors: 1 1951 1035469 2020200019