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2104101011220 = 2235136773984587
BaseRepresentation
bin11110100111100110001…
…100010111111100010100
321110011001102021011000020
4132213212030113330110
5233433144324324340
64250335522545140
7305005404333345
oct36474614277424
97404042234006
102104101011220
1174138719235a
1229b9572081b0
131235538a1370
1473ba643a0cc
1539aec2919d0
hex1e9e6317f14

2104101011220 has 96 divisors (see below), whose sum is σ = 6354047161728. Its totient is φ = 517167386112.

The previous prime is 2104101011209. The next prime is 2104101011227. The reversal of 2104101011220 is 221101014012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2104101011220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104101011227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1464234 + ... + 2520353.

It is an arithmetic number, because the mean of its divisors is an integer number (66187991268).

Almost surely, 22104101011220 is an apocalyptic number.

2104101011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104101011220 is an abundant number, since it is smaller than the sum of its proper divisors (4249946150508).

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

2104101011220 is a wasteful number, since it uses less digits than its factorization.

2104101011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985289 (or 3985287 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2104101011220 its reverse (221101014012), we get a palindrome (2325202025232).

The spelling of 2104101011220 in words is "two trillion, one hundred four billion, one hundred one million, eleven thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 677 780 1354 2031 2708 3385 4062 6770 8124 8801 10155 13540 17602 20310 26403 35204 40620 44005 52806 88010 105612 132015 176020 264030 528060 3984587 7969174 11953761 15938348 19922935 23907522 39845870 47815044 51799631 59768805 79691740 103599262 119537610 155398893 207198524 239075220 258998155 310797786 517996310 621595572 776994465 1035992620 1553988930 2697565399 3107977860 5395130798 8092696197 10790261596 13487826995 16185392394 26975653990 32370784788 35068350187 40463480985 53951307980 70136700374 80926961970 105205050561 140273400748 161853923940 175341750935 210410101122 350683501870 420820202244 526025252805 701367003740 1052050505610 2104101011220