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2000103220 = 225969710313
BaseRepresentation
bin111011100110111…
…0010011100110100
312011101112202211001
41313031302130310
513044011300340
6530245053044
7100364411503
oct16715623464
95141482731
102000103220
11937008175
124799b7184
1325b4b233b
1414d8c483a
15ba8d329a
hex77372734

2000103220 has 24 divisors (see below), whose sum is σ = 4201057224. Its totient is φ = 799881216.

The previous prime is 2000103187. The next prime is 2000103251. The reversal of 2000103220 is 223010002.

It can be written as a sum of positive squares in 4 ways, for example, as 8444836 + 1991658384 = 2906^2 + 44628^2 .

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 = 2000103197 and 2000103206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188784 + ... + 199096.

It is an arithmetic number, because the mean of its divisors is an integer number (175044051).

Almost surely, 22000103220 is an apocalyptic number.

2000103220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000103220 is an abundant number, since it is smaller than the sum of its proper divisors (2200954004).

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

2000103220 is a wasteful number, since it uses less digits than its factorization.

2000103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20019 (or 20017 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2000103220 is about 44722.5135697894. The cubic root of 2000103220 is about 1259.9427243638.

Adding to 2000103220 its reverse (223010002), we get a palindrome (2223113222).

The spelling of 2000103220 in words is "two billion, one hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 9697 10313 19394 20626 38788 41252 48485 51565 96970 103130 193940 206260 100005161 200010322 400020644 500025805 1000051610 2000103220