Search a number
-
+
6981101 = 171672459
BaseRepresentation
bin11010101000010111101101
3111010200021022
4122220113231
53241343401
6405343525
7113224031
oct32502755
914120238
106981101
113a39006
122407ba5
1315a573a
14cda1c1
1592d71b
hex6a85ed

6981101 has 8 divisors (see below), whose sum is σ = 7439040. Its totient is φ = 6528448.

The previous prime is 6981059. The next prime is 6981103. The reversal of 6981101 is 1011896.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6981101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6981103) 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 7 ways as a sum of consecutive naturals, for example, 1610 + ... + 4068.

It is an arithmetic number, because the mean of its divisors is an integer number (929880).

Almost surely, 26981101 is an apocalyptic number.

It is an amenable number.

6981101 is a deficient number, since it is larger than the sum of its proper divisors (457939).

6981101 is a wasteful number, since it uses less digits than its factorization.

6981101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 6981101 is about 2642.1773218314. The cubic root of 6981101 is about 191.1208084162.

Adding to 6981101 its reverse (1011896), we get a palindrome (7992997).

The spelling of 6981101 in words is "six million, nine hundred eighty-one thousand, one hundred one".

Divisors: 1 17 167 2459 2839 41803 410653 6981101