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2020212120 = 233516835101
BaseRepresentation
bin111100001101001…
…1111110110011000
312012210101102001010
41320122133312120
513114133241440
6532244053520
7101030343153
oct17032376630
95183342033
102020212120
119473a22a3
124846942a0
132627031b4
1415243ac9a
15bc556580
hex7869fd98

2020212120 has 32 divisors (see below), whose sum is σ = 6060636720. Its totient is φ = 538723200.

The previous prime is 2020212083. The next prime is 2020212121. The reversal of 2020212120 is 212120202.

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 = 2020212096 and 2020212105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020212121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8417431 + ... + 8417670.

Almost surely, 22020212120 is an apocalyptic number.

2020212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020212120 is an abundant number, since it is smaller than the sum of its proper divisors (4040424600).

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

2020212120 is a wasteful number, since it uses less digits than its factorization.

2020212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16835115 (or 16835111 counting only the distinct ones).

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

The square root of 2020212120 is about 44946.7698505688. The cubic root of 2020212120 is about 1264.1511112268.

Adding to 2020212120 its reverse (212120202), we get a palindrome (2232332322).

The spelling of 2020212120 in words is "two billion, twenty million, two hundred twelve thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 16835101 33670202 50505303 67340404 84175505 101010606 134680808 168351010 202021212 252526515 336702020 404042424 505053030 673404040 1010106060 2020212120