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2011302019 = 19105858001
BaseRepresentation
bin111011111100010…
…0000100010000011
312012011121201200101
41313320200202003
513104343131034
6531325103231
7100561533166
oct16770404203
95164551611
102011302019
11942366a81
124816b7b17
1326090374c
1415119badd
15bb896514
hex77e20883

2011302019 has 4 divisors (see below), whose sum is σ = 2117160040. Its totient is φ = 1905444000.

The previous prime is 2011302017. The next prime is 2011302023. The reversal of 2011302019 is 9102031102.

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 2011302019 - 21 = 2011302017 is a prime.

It is a super-2 number, since 2×20113020192 = 8090671623266952722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 105858001 = 2011302019 / (2 + 0 + 1 + 1 + 3 + 0 + 2 + 0 + 1 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011301987 and 2011302005.

It is not an unprimeable number, because it can be changed into a prime (2011302017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52928982 + ... + 52929019.

It is an arithmetic number, because the mean of its divisors is an integer number (529290010).

Almost surely, 22011302019 is an apocalyptic number.

2011302019 is a deficient number, since it is larger than the sum of its proper divisors (105858021).

2011302019 is a wasteful number, since it uses less digits than its factorization.

2011302019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105858020.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 2011302019 is about 44847.5419504793. The cubic root of 2011302019 is about 1262.2898686841.

The spelling of 2011302019 in words is "two billion, eleven million, three hundred two thousand, nineteen".

Divisors: 1 19 105858001 2011302019