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20013011022 = 23231021142039
BaseRepresentation
bin10010101000110111…
…100101000001001110
31220122202000022000110
4102220313211001032
5311441312323042
613105512140450
71305640533624
oct225067450116
956582008013
1020013011022
11853a906434
123a66397726
131b6c2b1b74
14d7bd11514
157c1e8b09c
hex4a8de504e

20013011022 has 32 divisors (see below), whose sum is σ = 41807485440. Its totient is φ = 6374665440.

The previous prime is 20013011021. The next prime is 20013011111. The reversal of 20013011022 is 22011031002.

It is a super-2 number, since 2×200130110222 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20013010989 and 20013011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013011021) 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, 69879 + ... + 211917.

It is an arithmetic number, because the mean of its divisors is an integer number (1306483920).

Almost surely, 220013011022 is an apocalyptic number.

20013011022 is an abundant number, since it is smaller than the sum of its proper divisors (21794474418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20013011022 is a wasteful number, since it uses less digits than its factorization.

20013011022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143088.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20013011022 its reverse (22011031002), we get a palindrome (42024042024).

The spelling of 20013011022 in words is "twenty billion, thirteen million, eleven thousand, twenty-two".

Divisors: 1 2 3 6 23 46 69 138 1021 2042 3063 6126 23483 46966 70449 140898 142039 284078 426117 852234 3266897 6533794 9800691 19601382 145021819 290043638 435065457 870130914 3335501837 6671003674 10006505511 20013011022