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2001911029211 = 13616637221623
BaseRepresentation
bin11101001000011011001…
…100100001110111011011
321002101021121210012012202
4131020123030201313123
5230244403210413321
64131355405000415
7264430135661552
oct35103314416733
97071247705182
102001911029211
1170200764a375
12283b97b5310b
13116a1945a0a2
146cc705c8d99
153711ab6870b
hex1d21b321ddb

2001911029211 has 8 divisors (see below), whose sum is σ = 2003692832544. Its totient is φ = 2000129685120.

The previous prime is 2001911029189. The next prime is 2001911029243. The reversal of 2001911029211 is 1129201191002.

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 2001911029211 - 26 = 2001911029147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001911020211) 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, 8922146 + ... + 9143768.

It is an arithmetic number, because the mean of its divisors is an integer number (250461604068).

Almost surely, 22001911029211 is an apocalyptic number.

2001911029211 is a deficient number, since it is larger than the sum of its proper divisors (1781803333).

2001911029211 is a wasteful number, since it uses less digits than its factorization.

2001911029211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229621.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 2001911029211 in words is "two trillion, one billion, nine hundred eleven million, twenty-nine thousand, two hundred eleven".

Divisors: 1 1361 6637 221623 9032957 301628903 1470911851 2001911029211