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20200220000020 = 2254378233002509
BaseRepresentation
bin1001001011111001110101…
…11011111111111100010100
32122112010022001201100110001
410211330322323333330110
510121430022310000040
6110543504123341044
74153263165652234
oct445747273777424
978463261640401
1020200220000020
116488957631535
122322b30981784
13b36b46070628
144db9a5649cc4
152506c27b559a
hex125f3aefff14

20200220000020 has 48 divisors (see below), whose sum is σ = 43412547467520. Its totient is φ = 7891167505536.

The previous prime is 20200220000011. The next prime is 20200220000029. The reversal of 20200220000020 is 2000002200202.

It is an interprime number because it is at equal distance from previous prime (20200220000011) and next prime (20200220000029).

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 = 20200219999961 and 20200220000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200220000029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5226526 + ... + 8229034.

It is an arithmetic number, because the mean of its divisors is an integer number (904428072240).

Almost surely, 220200220000020 is an apocalyptic number.

20200220000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200220000020 is an abundant number, since it is smaller than the sum of its proper divisors (23212327467500).

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

20200220000020 is a wasteful number, since it uses less digits than its factorization.

20200220000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3010384 (or 3010382 counting only the distinct ones).

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

Adding to 20200220000020 its reverse (2000002200202), we get a palindrome (22200222200222).

The spelling of 20200220000020 in words is "twenty trillion, two hundred billion, two hundred twenty million, twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 7823 15646 31292 39115 78230 156460 336389 672778 1345556 1681945 3002509 3363890 6005018 6727780 12010036 15012545 30025090 60050180 129107887 258215774 516431548 645539435 1291078870 2582157740 23488627907 46977255814 93954511628 117443139535 234886279070 469772558140 1010011000001 2020022000002 4040044000004 5050055000005 10100110000010 20200220000020