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2020312100 = 225271284551
BaseRepresentation
bin111100001101011…
…1000010000100100
312012210120111012002
41320122320100210
513114144441400
6532250144432
7101031240512
oct17032702044
95183514162
102020312100
11947460424
12484722118
13262739861
141524654b2
15bc575ed5
hex786b8424

2020312100 has 36 divisors (see below), whose sum is σ = 4445840448. Its totient is φ = 796740000.

The previous prime is 2020312097. The next prime is 2020312117. The reversal of 2020312100 is 12130202.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135176 + ... + 149375.

It is an arithmetic number, because the mean of its divisors is an integer number (123495568).

Almost surely, 22020312100 is an apocalyptic number.

2020312100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020312100 is an abundant number, since it is smaller than the sum of its proper divisors (2425528348).

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

2020312100 is a wasteful number, since it uses less digits than its factorization.

2020312100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284636 (or 284629 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2020312100 is about 44947.8820413154. The cubic root of 2020312100 is about 1264.1719651001.

Adding to 2020312100 its reverse (12130202), we get a palindrome (2032442302).

The spelling of 2020312100 in words is "two billion, twenty million, three hundred twelve thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 71 100 142 284 355 710 1420 1775 3550 7100 284551 569102 1138204 1422755 2845510 5691020 7113775 14227550 20203121 28455100 40406242 80812484 101015605 202031210 404062420 505078025 1010156050 2020312100