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20000231022 = 2319210984713
BaseRepresentation
bin10010101000000110…
…110100111001101110
31220121211222000011010
4102220012310321232
5311430024343042
613104334210050
71305424105302
oct225006647156
956554860133
1020000231022
118533677652
123a62053926
131b69758b35
14d7a345d02
157c0cb459c
hex4a81b4e6e

20000231022 has 48 divisors (see below), whose sum is σ = 42604364880. Its totient is φ = 6257844864.

The previous prime is 20000230981. The next prime is 20000231039. The reversal of 20000231022 is 22013200002.

It is a junction number, because it is equal to n+sod(n) for n = 20000230989 and 20000231007.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 193738 + ... + 278450.

It is an arithmetic number, because the mean of its divisors is an integer number (887590935).

Almost surely, 220000231022 is an apocalyptic number.

20000231022 is an abundant number, since it is smaller than the sum of its proper divisors (22604133858).

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

20000231022 is a wasteful number, since it uses less digits than its factorization.

20000231022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84865 (or 84846 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20000231022 its reverse (22013200002), we get a palindrome (42013431024).

The spelling of 20000231022 in words is "twenty billion, two hundred thirty-one thousand, twenty-two".

Divisors: 1 2 3 6 19 38 57 109 114 218 327 361 654 722 1083 2071 2166 4142 6213 12426 39349 78698 84713 118047 169426 236094 254139 508278 1609547 3219094 4828641 9233717 9657282 18467434 27701151 30581393 55402302 61162786 91744179 175440623 183488358 350881246 526321869 1052643738 3333371837 6666743674 10000115511 20000231022