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2020887 = 3211137149
BaseRepresentation
bin111101101011000010111
310210200010200
413231120113
51004132022
6111151543
723114541
oct7553027
93720120
102020887
111160360
128155b3
13559abb
143a8691
1529dbac
hex1ed617

2020887 has 24 divisors (see below), whose sum is σ = 3229200. Its totient is φ = 1207680.

The previous prime is 2020883. The next prime is 2020891. The reversal of 2020887 is 7880202.

It is an interprime number because it is at equal distance from previous prime (2020883) and next prime (2020891).

It is not a de Polignac number, because 2020887 - 22 = 2020883 is a prime.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 2020887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13489 + ... + 13637.

It is an arithmetic number, because the mean of its divisors is an integer number (134550).

22020887 is an apocalyptic number.

2020887 is a deficient number, since it is larger than the sum of its proper divisors (1208313).

2020887 is a wasteful number, since it uses less digits than its factorization.

2020887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 2020887 is about 1421.5790516183. The cubic root of 2020887 is about 126.4291864650.

The spelling of 2020887 in words is "two million, twenty thousand, eight hundred eighty-seven".

Divisors: 1 3 9 11 33 99 137 149 411 447 1233 1341 1507 1639 4521 4917 13563 14751 20413 61239 183717 224543 673629 2020887