Search a number
-
+
6890001 = 33077481
BaseRepresentation
bin11010010010001000010001
3110222001022020
4122102020101
53230440001
6403402053
7112364316
oct32221021
913861266
106890001
113986618
122383329
131573131
14cb4d0d
15911736
hex692211

6890001 has 8 divisors (see below), whose sum is σ = 9217824. Its totient is φ = 4577760.

The previous prime is 6889997. The next prime is 6890017. The reversal of 6890001 is 1000986.

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

It is not a de Polignac number, because 6890001 - 22 = 6889997 is a prime.

It is a super-2 number, since 2×68900012 = 94944227560002, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6890101) 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, 2820 + ... + 4661.

It is an arithmetic number, because the mean of its divisors is an integer number (1152228).

Almost surely, 26890001 is an apocalyptic number.

It is an amenable number.

6890001 is a deficient number, since it is larger than the sum of its proper divisors (2327823).

6890001 is a wasteful number, since it uses less digits than its factorization.

6890001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7791.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 6890001 is about 2624.8811401662. The cubic root of 6890001 is about 190.2858209721.

Adding to 6890001 its reverse (1000986), we get a palindrome (7890987).

The spelling of 6890001 in words is "six million, eight hundred ninety thousand, one".

Divisors: 1 3 307 921 7481 22443 2296667 6890001