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2020101200 = 245213388481
BaseRepresentation
bin111100001101000…
…0100110001010000
312012210011202212222
41320122010301100
513114121214300
6532241440212
7101026401605
oct17032046120
95183152788
102020101200
11947326a27
12484640068
13262694870
1415240c6ac
15bc533785
hex78684c50

2020101200 has 60 divisors (see below), whose sum is σ = 5226636828. Its totient is φ = 745881600.

The previous prime is 2020101197. The next prime is 2020101229. The reversal of 2020101200 is 21010202.

It can be written as a sum of positive squares in 6 ways, for example, as 19149376 + 2000951824 = 4376^2 + 44732^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189041 + ... + 199440.

Almost surely, 22020101200 is an apocalyptic number.

2020101200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020101200 is an abundant number, since it is smaller than the sum of its proper divisors (3206535628).

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

2020101200 is a wasteful number, since it uses less digits than its factorization.

2020101200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388512 (or 388501 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 2020101200 is about 44945.5359296115. The cubic root of 2020101200 is about 1264.1279746782.

Adding to 2020101200 its reverse (21010202), we get a palindrome (2041111402).

The spelling of 2020101200 in words is "two billion, twenty million, one hundred one thousand, two hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 80 100 104 130 200 208 260 325 400 520 650 1040 1300 2600 5200 388481 776962 1553924 1942405 3107848 3884810 5050253 6215696 7769620 9712025 10100506 15539240 19424050 20201012 25251265 31078480 38848100 40402024 50502530 77696200 80804048 101005060 126256325 155392400 202010120 252512650 404020240 505025300 1010050600 2020101200