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2020110200020 = 2251127971047373
BaseRepresentation
bin11101011001010111111…
…100110110110011010100
321011010020221201212020001
4131121113330312303110
5231044141202400040
64144005324221044
7265643133245563
oct35312774666324
97133227655201
102020110200020
117097a65a8800
1228761699a784
13118659a14403
146dab965dbda
153783376559a
hex1d657f36cd4

2020110200020 has 72 divisors (see below), whose sum is σ = 4668803668872. Its totient is φ = 733663138560.

The previous prime is 2020110199997. The next prime is 2020110200023. The reversal of 2020110200020 is 200020110202.

It can be written as a sum of positive squares in 4 ways, for example, as 1676247364 + 2018433952656 = 40942^2 + 1420716^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020110200023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1405054 + ... + 2452426.

It is an arithmetic number, because the mean of its divisors is an integer number (64844495401).

Almost surely, 22020110200020 is an apocalyptic number.

2020110200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2020110200020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2334401834436).

2020110200020 is an abundant number, since it is smaller than the sum of its proper divisors (2648693468852).

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

2020110200020 is a wasteful number, since it uses less digits than its factorization.

2020110200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048201 (or 1048188 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2020110200020 its reverse (200020110202), we get a palindrome (2220130310222).

The spelling of 2020110200020 in words is "two trillion, twenty billion, one hundred ten million, two hundred thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 220 242 484 605 797 1210 1594 2420 3188 3985 7970 8767 15940 17534 35068 43835 87670 96437 175340 192874 385748 482185 964370 1047373 1928740 2094746 4189492 5236865 10473730 11521103 20947460 23042206 46084412 57605515 115211030 126732133 230422060 253464266 506928532 633660665 834756281 1267321330 1669512562 2534642660 3339025124 4173781405 8347562810 9182319091 16695125620 18364638182 36729276364 45911595455 91823190910 101005510001 183646381820 202011020002 404022040004 505027550005 1010055100010 2020110200020