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2041989 = 31740039
BaseRepresentation
bin111110010100010000101
310211202002020
413302202011
51010320424
6111433353
723233215
oct7624205
93752066
102041989
1111751a4
12825859
135665a1
143b2245
152a5079
hex1f2885

2041989 has 8 divisors (see below), whose sum is σ = 2882880. Its totient is φ = 1281216.

The previous prime is 2041967. The next prime is 2041997. The reversal of 2041989 is 9891402.

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

It is not a de Polignac number, because 2041989 - 25 = 2041957 is a prime.

It is a super-2 number, since 2×20419892 = 8339438152242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2041489) 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, 19969 + ... + 20070.

It is an arithmetic number, because the mean of its divisors is an integer number (360360).

22041989 is an apocalyptic number.

It is an amenable number.

2041989 is a deficient number, since it is larger than the sum of its proper divisors (840891).

2041989 is a wasteful number, since it uses less digits than its factorization.

2041989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40059.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 2041989 is about 1428.9818053425. The cubic root of 2041989 is about 126.8677193360.

The spelling of 2041989 in words is "two million, forty-one thousand, nine hundred eighty-nine".

Divisors: 1 3 17 51 40039 120117 680663 2041989