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6989441 = 61149769
BaseRepresentation
bin11010101010011010000001
3111011002201012
4122222122001
53242130231
6405450305
7113260244
oct32523201
914132635
106989441
113a442a8
122410995
1315a9484
14cdd25b
15930e2b
hex6aa681

6989441 has 8 divisors (see below), whose sum is σ = 7161000. Its totient is φ = 6819840.

The previous prime is 6989429. The next prime is 6989443. The reversal of 6989441 is 1449896.

It can be written as a sum of positive squares in 4 ways, for example, as 229441 + 6760000 = 479^2 + 2600^2 .

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 6989441 - 210 = 6988417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6989443) 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, 8705 + ... + 9473.

It is an arithmetic number, because the mean of its divisors is an integer number (895125).

Almost surely, 26989441 is an apocalyptic number.

6989441 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6989441 is a deficient number, since it is larger than the sum of its proper divisors (171559).

6989441 is a wasteful number, since it uses less digits than its factorization.

6989441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979.

The product of its digits is 62208, while the sum is 41.

The square root of 6989441 is about 2643.7550945577. The cubic root of 6989441 is about 191.1968858727.

The spelling of 6989441 in words is "six million, nine hundred eighty-nine thousand, four hundred forty-one".

Divisors: 1 61 149 769 9089 46909 114581 6989441