Search a number
-
+
6301984681 = 20173312397
BaseRepresentation
bin1011101111010000…
…01010011110101001
3121021012021222210001
411313220022132221
5100401302002211
62521201223001
7312111662116
oct56750123651
917235258701
106301984681
112744340403
12127a631a61
13795810025
1443ad7b90d
1526d3d9ac1
hex177a0a7a9

6301984681 has 4 divisors (see below), whose sum is σ = 6302317252. Its totient is φ = 6301652112.

The previous prime is 6301984679. The next prime is 6301984687. The reversal of 6301984681 is 1864891036.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5494515625 + 807469056 = 74125^2 + 28416^2 .

It is a cyclic number.

It is not a de Polignac number, because 6301984681 - 21 = 6301984679 is a prime.

It is a super-2 number, since 2×63019846812 = 79430021839117343522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6301984687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136026 + ... + 176371.

It is an arithmetic number, because the mean of its divisors is an integer number (1575579313).

Almost surely, 26301984681 is an apocalyptic number.

It is an amenable number.

6301984681 is a deficient number, since it is larger than the sum of its proper divisors (332571).

6301984681 is a wasteful number, since it uses less digits than its factorization.

6301984681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332570.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 6301984681 is about 79385.0406625833. The cubic root of 6301984681 is about 1847.1086738216.

The spelling of 6301984681 in words is "six billion, three hundred one million, nine hundred eighty-four thousand, six hundred eighty-one".

Divisors: 1 20173 312397 6301984681