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20200310331 = 389683110771
BaseRepresentation
bin10010110100000010…
…000100011000111011
31221010210110002100220
4102310002010120323
5312332234412311
613140242431123
71313403543015
oct226402043073
957123402326
1020200310331
118626604153
123ab90624a3
131b9c040266
14d98b491b5
157d3637206
hex4b408463b

20200310331 has 16 divisors (see below), whose sum is σ = 27276497280. Its totient is φ = 13295944640.

The previous prime is 20200310309. The next prime is 20200310357. The reversal of 20200310331 is 13301300202.

It is a cyclic number.

It is not a de Polignac number, because 20200310331 - 211 = 20200308283 is a prime.

It is a super-2 number, since 2×202003103312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20200310331.

It is not an unprimeable number, because it can be changed into a prime (20200310381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126976 + ... + 237746.

It is an arithmetic number, because the mean of its divisors is an integer number (1704781080).

Almost surely, 220200310331 is an apocalyptic number.

20200310331 is a deficient number, since it is larger than the sum of its proper divisors (7076186949).

20200310331 is a wasteful number, since it uses less digits than its factorization.

20200310331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111546.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20200310331 its reverse (13301300202), we get a palindrome (33501610533).

The spelling of 20200310331 in words is "twenty billion, two hundred million, three hundred ten thousand, three hundred thirty-one".

Divisors: 1 3 89 267 683 2049 60787 110771 182361 332313 9858619 29575857 75656593 226969779 6733436777 20200310331