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6989242 = 213268817
BaseRepresentation
bin11010101010010110111010
3111011002102211
4122222112322
53242123432
6405445334
7113256541
oct32522672
914132384
106989242
113a44137
12241084a
1315a9360
14cdd158
15930d47
hex6aa5ba

6989242 has 8 divisors (see below), whose sum is σ = 11290356. Its totient is φ = 3225792.

The previous prime is 6989237. The next prime is 6989249. The reversal of 6989242 is 2429896.

It can be written as a sum of positive squares in 2 ways, for example, as 6922161 + 67081 = 2631^2 + 259^2 .

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

It is a d-powerful number, because it can be written as 68 + 95 + 83 + 96 + 25 + 411 + 219 .

It is a junction number, because it is equal to n+sod(n) for n = 6989195 and 6989204.

It is not an unprimeable number, because it can be changed into a prime (6989249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134383 + ... + 134434.

Almost surely, 26989242 is an apocalyptic number.

6989242 is a deficient number, since it is larger than the sum of its proper divisors (4301114).

6989242 is a wasteful number, since it uses less digits than its factorization.

6989242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268832.

The product of its digits is 62208, while the sum is 40.

The square root of 6989242 is about 2643.7174584286. The cubic root of 6989242 is about 191.1950713003.

The spelling of 6989242 in words is "six million, nine hundred eighty-nine thousand, two hundred forty-two".

Divisors: 1 2 13 26 268817 537634 3494621 6989242