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6990841 = 1113193183
BaseRepresentation
bin11010101010101111111001
3111011011122001
4122222233321
53242201331
6405501001
7113264314
oct32525771
914134561
106990841
113a45360
122411761
1315a9cc0
14cdd97b
15931561
hex6aabf9

6990841 has 32 divisors (see below), whose sum is σ = 9031680. Its totient is φ = 5313600.

The previous prime is 6990839. The next prime is 6990853. The reversal of 6990841 is 1480996.

It is a cyclic number.

It is not a de Polignac number, because 6990841 - 21 = 6990839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6990841.

It is not an unprimeable number, because it can be changed into a prime (6990821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84186 + ... + 84268.

It is an arithmetic number, because the mean of its divisors is an integer number (282240).

Almost surely, 26990841 is an apocalyptic number.

It is an amenable number.

6990841 is a deficient number, since it is larger than the sum of its proper divisors (2040839).

6990841 is a wasteful number, since it uses less digits than its factorization.

6990841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 6990841 is about 2644.0198562038. The cubic root of 6990841 is about 191.2096507357.

The spelling of 6990841 in words is "six million, nine hundred ninety thousand, eight hundred forty-one".

Divisors: 1 11 13 19 31 83 143 209 247 341 403 589 913 1079 1577 2573 2717 4433 6479 7657 11869 17347 20501 28303 33449 48887 84227 225511 367939 537757 635531 6990841