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2020201540 = 225797148763
BaseRepresentation
bin111100001101001…
…1101010001000100
312012210100212112021
41320122131101010
513114132422130
6532243532524
7101030300260
oct17032352104
95183325467
102020201540
11947395355
1248468a144
132626cb436
141524370a0
15bc55337a
hex7869d444

2020201540 has 48 divisors (see below), whose sum is σ = 4898500992. Its totient is φ = 685495296.

The previous prime is 2020201529. The next prime is 2020201541. The reversal of 2020201540 is 451020202.

It is not an unprimeable number, because it can be changed into a prime (2020201541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60802 + ... + 87961.

It is an arithmetic number, because the mean of its divisors is an integer number (102052104).

Almost surely, 22020201540 is an apocalyptic number.

2020201540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020201540 is an abundant number, since it is smaller than the sum of its proper divisors (2878299452).

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

2020201540 is a wasteful number, since it uses less digits than its factorization.

2020201540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148876 (or 148874 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2020201540 is about 44946.6521556389. The cubic root of 2020201540 is about 1264.1489044054.

Adding to 2020201540 its reverse (451020202), we get a palindrome (2471221742).

The spelling of 2020201540 in words is "two billion, twenty million, two hundred one thousand, five hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 97 140 194 388 485 679 970 1358 1940 2716 3395 6790 13580 148763 297526 595052 743815 1041341 1487630 2082682 2975260 4165364 5206705 10413410 14430011 20826820 28860022 57720044 72150055 101010077 144300110 202020154 288600220 404040308 505050385 1010100770 2020201540