Search a number
-
+
2020285 = 52913933
BaseRepresentation
bin111101101001110111101
310210122022101
413231032331
51004122120
6111145101
723113021
oct7551675
93718271
102020285
11115a963
12815191
13559747
143a8381
1529d90a
hex1ed3bd

2020285 has 8 divisors (see below), whose sum is σ = 2508120. Its totient is φ = 1560384.

The previous prime is 2020279. The next prime is 2020309. The reversal of 2020285 is 5820202.

It can be written as a sum of positive squares in 4 ways, for example, as 840889 + 1179396 = 917^2 + 1086^2 .

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 2020285 - 25 = 2020253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6822 + ... + 7111.

It is an arithmetic number, because the mean of its divisors is an integer number (313515).

22020285 is an apocalyptic number.

It is an amenable number.

2020285 is a deficient number, since it is larger than the sum of its proper divisors (487835).

2020285 is a wasteful number, since it uses less digits than its factorization.

2020285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13967.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2020285 is about 1421.3672994691. The cubic root of 2020285 is about 126.4166312638.

Adding to 2020285 its reverse (5820202), we get a palindrome (7840487).

The spelling of 2020285 in words is "two million, twenty thousand, two hundred eighty-five".

Divisors: 1 5 29 145 13933 69665 404057 2020285