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2001211019 = 15733733779
BaseRepresentation
bin111011101001000…
…0000111010001011
312011110122001102122
41313102000322023
513044302223034
6530324521455
7100410004313
oct16722007213
95143561378
102001211019
119376a4505
1247a25028b
1325b7ac642
1414dad2443
15baa5162e
hex77480e8b

2001211019 has 8 divisors (see below), whose sum is σ = 2015087760. Its totient is φ = 1987348896.

The previous prime is 2001210989. The next prime is 2001211027. The reversal of 2001211019 is 9101121002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001211019 - 28 = 2001210763 is a prime.

It is a super-2 number, since 2×20012110192 = 8009691085134036722, 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 = 2001210988 and 2001211006.

It is not an unprimeable number, because it can be changed into a prime (2001211519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527672 + ... + 531450.

It is an arithmetic number, because the mean of its divisors is an integer number (251885970).

Almost surely, 22001211019 is an apocalyptic number.

2001211019 is a deficient number, since it is larger than the sum of its proper divisors (13876741).

2001211019 is a wasteful number, since it uses less digits than its factorization.

2001211019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7309.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 2001211019 is about 44734.8971050566. The cubic root of 2001211019 is about 1260.1752966405.

The spelling of 2001211019 in words is "two billion, one million, two hundred eleven thousand, nineteen".

Divisors: 1 157 3373 3779 529561 593303 12746567 2001211019