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20000022002020 = 2251918352129547
BaseRepresentation
bin1001000110000100111100…
…01101001111100101100100
32121210222112220212022202101
410203002132031033211210
510110140021113031040
6110311514441421444
74132645122026464
oct443023615174544
977728486768671
1020000022002020
116410a64025525
1222b017aa9a884
13b20cbca18498
144d2013147ba4
1524a3a6c8009a
hex12309e34f964

20000022002020 has 24 divisors (see below), whose sum is σ = 42002236450944. Its totient is φ = 7999591610976.

The previous prime is 20000022001969. The next prime is 20000022002027. The reversal of 20000022002020 is 2020022000002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20000022001988 and 20000022002006.

It is not an unprimeable number, because it can be changed into a prime (20000022002027) 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, 25681114 + ... + 26448433.

It is an arithmetic number, because the mean of its divisors is an integer number (1750093185456).

Almost surely, 220000022002020 is an apocalyptic number.

20000022002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000022002020 is an abundant number, since it is smaller than the sum of its proper divisors (22002214448924).

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

20000022002020 is a wasteful number, since it uses less digits than its factorization.

20000022002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52148739 (or 52148737 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

Adding to 20000022002020 its reverse (2020022000002), we get a palindrome (22020044002022).

The spelling of 20000022002020 in words is "twenty trillion, twenty-two million, two thousand, twenty".

Divisors: 1 2 4 5 10 20 19183 38366 76732 95915 191830 383660 52129547 104259094 208518188 260647735 521295470 1042590940 1000001100101 2000002200202 4000004400404 5000005500505 10000011001010 20000022002020