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2020895 = 52317573
BaseRepresentation
bin111101101011000011111
310210200010222
413231120133
51004132040
6111151555
723114552
oct7553037
93720128
102020895
111160368
128155bb
13559ac6
143a8699
1529dbb5
hex1ed61f

2020895 has 8 divisors (see below), whose sum is σ = 2530656. Its totient is φ = 1546336.

The previous prime is 2020891. The next prime is 2020913. The reversal of 2020895 is 5980202.

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

It is not a de Polignac number, because 2020895 - 22 = 2020891 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020891) 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, 8672 + ... + 8901.

It is an arithmetic number, because the mean of its divisors is an integer number (316332).

22020895 is an apocalyptic number.

2020895 is a deficient number, since it is larger than the sum of its proper divisors (509761).

2020895 is a wasteful number, since it uses less digits than its factorization.

2020895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17601.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2020895 is about 1421.5818653880. The cubic root of 2020895 is about 126.4293532948.

The spelling of 2020895 in words is "two million, twenty thousand, eight hundred ninety-five".

Divisors: 1 5 23 115 17573 87865 404179 2020895