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2020120102020 = 2235733169727067
BaseRepresentation
bin11101011001011000100…
…010101000010010000100
321011010021122100221012210
4131121120202220102010
5231044201221231040
64144010320343420
7265643313356436
oct35313042502204
97133248327183
102020120102020
11709801151279
1228761a174b70
1311865baa0497
146dabaaba656
153783456e480
hex1d6588a8484

2020120102020 has 96 divisors (see below), whose sum is σ = 5667600048768. Its totient is φ = 537626898432.

The previous prime is 2020120101997. The next prime is 2020120102093. The reversal of 2020120102020 is 202010210202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2020120101987 and 2020120102005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74620527 + ... + 74647593.

It is an arithmetic number, because the mean of its divisors is an integer number (59037500508).

Almost surely, 22020120102020 is an apocalyptic number.

2020120102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020120102020 is an abundant number, since it is smaller than the sum of its proper divisors (3647479946748).

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

2020120102020 is a wasteful number, since it uses less digits than its factorization.

2020120102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29509 (or 29507 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2020120102020 its reverse (202010210202), we get a palindrome (2222130312222).

The spelling of 2020120102020 in words is "two trillion, twenty billion, one hundred twenty million, one hundred two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 733 1466 1697 2199 2932 3394 3665 4398 5091 6788 7330 8485 8796 10182 10995 14660 16970 20364 21990 25455 27067 33940 43980 50910 54134 81201 101820 108268 135335 162402 270670 324804 406005 541340 812010 1243901 1624020 2487802 3731703 4975604 6219505 7463406 12439010 14926812 18658515 19840111 24878020 37317030 39680222 45932699 59520333 74634060 79360444 91865398 99200555 119040666 137798097 183730796 198401110 229663495 238081332 275596194 297601665 396802220 459326990 551192388 595203330 688990485 918653980 1190406660 1377980970 2755961940 33668668367 67337336734 101006005101 134674673468 168343341835 202012010202 336686683670 404024020404 505030025505 673373367340 1010060051010 2020120102020