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20003331331 = 711999140939
BaseRepresentation
bin10010101000010010…
…101001110100000011
31220122001210111222101
4102220102221310003
5311431323100311
613104524451231
71305462340144
oct225022516403
956561714871
1020003331331
1185353a4995
123a630a9b17
131b6a2a3039
14d7a911acb
157c11c7ec1
hex4a84a9d03

20003331331 has 8 divisors (see below), whose sum is σ = 20295360000. Its totient is φ = 19711588680.

The previous prime is 20003331319. The next prime is 20003331373. The reversal of 20003331331 is 13313330002.

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 20003331331 - 215 = 20003298563 is a prime.

It is a super-2 number, since 2×200033313312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20003331299 and 20003331308.

It is not an unprimeable number, because it can be changed into a prime (20003334331) 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, 71460 + ... + 212398.

It is an arithmetic number, because the mean of its divisors is an integer number (2536920000).

Almost surely, 220003331331 is an apocalyptic number.

20003331331 is a deficient number, since it is larger than the sum of its proper divisors (292028669).

20003331331 is a wasteful number, since it uses less digits than its factorization.

20003331331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143009.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 20003331331 its reverse (13313330002), we get a palindrome (33316661333).

The spelling of 20003331331 in words is "twenty billion, three million, three hundred thirty-one thousand, three hundred thirty-one".

Divisors: 1 71 1999 140939 141929 10006669 281737061 20003331331