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2020422131 = 71322202441
BaseRepresentation
bin111100001101101…
…0011000111110011
312012210210002010022
41320123103013303
513114212002011
6532252354055
7101032206350
oct17033230763
95183702108
102020422131
11947526062
1248477592b
13262777970
14152493627
15bc5988db
hex786d31f3

2020422131 has 8 divisors (see below), whose sum is σ = 2486673504. Its totient is φ = 1598575680.

The previous prime is 2020422119. The next prime is 2020422139. The reversal of 2020422131 is 1312240202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-2020422131 is a prime.

It is a super-2 number, since 2×20204221312 = 8164211174869162322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2020422139) 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, 11101130 + ... + 11101311.

It is an arithmetic number, because the mean of its divisors is an integer number (310834188).

Almost surely, 22020422131 is an apocalyptic number.

2020422131 is a deficient number, since it is larger than the sum of its proper divisors (466251373).

2020422131 is a wasteful number, since it uses less digits than its factorization.

2020422131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22202461.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2020422131 is about 44949.1060089075. The cubic root of 2020422131 is about 1264.1949146204.

Adding to 2020422131 its reverse (1312240202), we get a palindrome (3332662333).

The spelling of 2020422131 in words is "two billion, twenty million, four hundred twenty-two thousand, one hundred thirty-one".

Divisors: 1 7 13 91 22202441 155417087 288631733 2020422131