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2690841 = 3896947
BaseRepresentation
bin1010010000111100011001
312001201010210
422100330121
51142101331
6133401333
731605006
oct12207431
95051123
102690841
11157873a
12a99249
13732a1a
145008ad
15382446
hex290f19

2690841 has 4 divisors (see below), whose sum is σ = 3587792. Its totient is φ = 1793892.

The previous prime is 2690827. The next prime is 2690851. The reversal of 2690841 is 1480962.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2690841 - 29 = 2690329 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

2690841 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2690799 and 2690808.

It is not an unprimeable number, because it can be changed into a prime (2690851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448471 + ... + 448476.

It is an arithmetic number, because the mean of its divisors is an integer number (896948).

22690841 is an apocalyptic number.

It is an amenable number.

2690841 is a deficient number, since it is larger than the sum of its proper divisors (896951).

2690841 is an equidigital number, since it uses as much as digits as its factorization.

2690841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896950.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2690841 is about 1640.3783100249. The cubic root of 2690841 is about 139.0900336257.

The spelling of 2690841 in words is "two million, six hundred ninety thousand, eight hundred forty-one".

Divisors: 1 3 896947 2690841