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2020215401 = 5950967271
BaseRepresentation
bin111100001101010…
…0000101001101001
312012210101120112122
41320122200221221
513114133343101
6532244121025
7101030355551
oct17032405151
95183346478
102020215401
119473a4806
12484696175
13262704839
1415243c161
15bc55751b
hex786a0a69

2020215401 has 8 divisors (see below), whose sum is σ = 2058523200. Its totient is φ = 1982043280.

The previous prime is 2020215397. The next prime is 2020215403. The reversal of 2020215401 is 1045120202.

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

It is a cyclic number.

It is not a de Polignac number, because 2020215401 - 22 = 2020215397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020215401.

It is not an unprimeable number, because it can be changed into a prime (2020215403) 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, 3605 + ... + 63666.

It is an arithmetic number, because the mean of its divisors is an integer number (257315400).

Almost surely, 22020215401 is an apocalyptic number.

It is an amenable number.

2020215401 is a deficient number, since it is larger than the sum of its proper divisors (38307799).

2020215401 is an equidigital number, since it uses as much as digits as its factorization.

2020215401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67839.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2020215401 is about 44946.8063492836. The cubic root of 2020215401 is about 1264.1517955902.

Adding to 2020215401 its reverse (1045120202), we get a palindrome (3065335603).

The spelling of 2020215401 in words is "two billion, twenty million, two hundred fifteen thousand, four hundred one".

Divisors: 1 59 509 30031 67271 3968989 34240939 2020215401