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2020111200 = 253252377583
BaseRepresentation
bin111100001101000…
…0111001101100000
312012210012021121100
41320122013031200
513114122024300
6532241554400
7101026443012
oct17032071540
95183167540
102020111200
11947333498
12484645a00
13262699293
141524121b2
15bc536700
hex78687360

2020111200 has 216 divisors, whose sum is σ = 7316906688. Its totient is φ = 524067840.

The previous prime is 2020111193. The next prime is 2020111213. The reversal of 2020111200 is 21110202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 262609 + ... + 270191.

It is an arithmetic number, because the mean of its divisors is an integer number (33874568).

Almost surely, 22020111200 is an apocalyptic number.

2020111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2020111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3658453344).

2020111200 is an abundant number, since it is smaller than the sum of its proper divisors (5296795488).

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

2020111200 is a wasteful number, since it uses less digits than its factorization.

2020111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7646 (or 7630 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2020111200 is about 44945.6471752271. The cubic root of 2020111200 is about 1264.1300605900.

Adding to 2020111200 its reverse (21110202), we get a palindrome (2041221402).

The spelling of 2020111200 in words is "two billion, twenty million, one hundred eleven thousand, two hundred".