Search a number
-
+
6981797353 = 131269198127
BaseRepresentation
bin1101000000010010…
…11100010111101001
3200000120111001110011
412200021130113221
5103244320003403
63112444051521
7335005204216
oct64011342751
920016431404
106981797353
112a63051763
12142a233ba1
1387360194b
144a337cb0d
152ace20a6d
hex1a025c5e9

6981797353 has 8 divisors (see below), whose sum is σ = 7061281920. Its totient is φ = 6902709840.

The previous prime is 6981797351. The next prime is 6981797359. The reversal of 6981797353 is 3537971896.

It is a happy number.

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 6981797353 - 21 = 6981797351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6981797351) 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, 63825 + ... + 134302.

It is an arithmetic number, because the mean of its divisors is an integer number (882660240).

Almost surely, 26981797353 is an apocalyptic number.

It is an amenable number.

6981797353 is a deficient number, since it is larger than the sum of its proper divisors (79484567).

6981797353 is a wasteful number, since it uses less digits than its factorization.

6981797353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198527.

The product of its digits is 8573040, while the sum is 58.

The square root of 6981797353 is about 83557.1502206723. The cubic root of 6981797353 is about 1911.2716286385.

The spelling of 6981797353 in words is "six billion, nine hundred eighty-one million, seven hundred ninety-seven thousand, three hundred fifty-three".

Divisors: 1 131 269 35239 198127 25954637 53296163 6981797353