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20022002331 = 317409395917
BaseRepresentation
bin10010101001011001…
…111000001010011011
31220200100221002202220
4102221121320022123
5312001113033311
613110432555123
71306110132432
oct225131701233
956610832686
1020022002331
118544997771
123a693b2aa3
131b7110c576
14d7d1b2119
157c2b65206
hex4a967829b

20022002331 has 16 divisors (see below), whose sum is σ = 28273557024. Its totient is φ = 12559624704.

The previous prime is 20022002321. The next prime is 20022002383. The reversal of 20022002331 is 13320022002.

It is not a de Polignac number, because 20022002331 - 218 = 20021740187 is a prime.

It is a super-2 number, since 2×200220023312 (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 20022002331.

It is not an unprimeable number, because it can be changed into a prime (20022002321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160785 + ... + 256701.

It is an arithmetic number, because the mean of its divisors is an integer number (1767097314).

Almost surely, 220022002331 is an apocalyptic number.

20022002331 is a deficient number, since it is larger than the sum of its proper divisors (8251554693).

20022002331 is a wasteful number, since it uses less digits than its factorization.

20022002331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100030.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20022002331 its reverse (13320022002), we get a palindrome (33342024333).

The spelling of 20022002331 in words is "twenty billion, twenty-two million, two thousand, three hundred thirty-one".

Divisors: 1 3 17 51 4093 12279 69581 95917 208743 287751 1630589 4891767 392588281 1177764843 6674000777 20022002331