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6982121 = 17616733
BaseRepresentation
bin11010101000100111101001
3111010201200002
4122220213221
53241411441
6405352345
7113230016
oct32504751
914121602
106982121
113a39853
1224086b5
1315a6043
14cda70d
1592db9b
hex6a89e9

6982121 has 8 divisors (see below), whose sum is σ = 7515144. Its totient is φ = 6462720.

The previous prime is 6982111. The next prime is 6982147. The reversal of 6982121 is 1212896.

It can be written as a sum of positive squares in 4 ways, for example, as 2190400 + 4791721 = 1480^2 + 2189^2 .

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

It is not a de Polignac number, because 6982121 - 26 = 6982057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6982111) 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, 2330 + ... + 4403.

It is an arithmetic number, because the mean of its divisors is an integer number (939393).

Almost surely, 26982121 is an apocalyptic number.

6982121 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6982121 is a deficient number, since it is larger than the sum of its proper divisors (533023).

6982121 is a wasteful number, since it uses less digits than its factorization.

6982121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6811.

The product of its digits is 1728, while the sum is 29.

The square root of 6982121 is about 2642.3703374054. The cubic root of 6982121 is about 191.1301161042.

The spelling of 6982121 in words is "six million, nine hundred eighty-two thousand, one hundred twenty-one".

Divisors: 1 17 61 1037 6733 114461 410713 6982121