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2066889 = 31162633
BaseRepresentation
bin111111000100111001001
310220000020110
413320213021
51012120024
6112144533
723365626
oct7704711
93800213
102066889
111191980
12838149
13574a16
143bb34d
152ac629
hex1f89c9

2066889 has 8 divisors (see below), whose sum is σ = 3006432. Its totient is φ = 1252640.

The previous prime is 2066887. The next prime is 2066893. The reversal of 2066889 is 9886602.

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 2066889 - 21 = 2066887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2066887) 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, 31284 + ... + 31349.

It is an arithmetic number, because the mean of its divisors is an integer number (375804).

22066889 is an apocalyptic number.

It is an amenable number.

2066889 is a deficient number, since it is larger than the sum of its proper divisors (939543).

2066889 is a wasteful number, since it uses less digits than its factorization.

2066889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62647.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 2066889 is about 1437.6679032377. The cubic root of 2066889 is about 127.3813120792.

The spelling of 2066889 in words is "two million, sixty-six thousand, eight hundred eighty-nine".

Divisors: 1 3 11 33 62633 187899 688963 2066889