Search a number
-
+
19679068001 = 113717173053
BaseRepresentation
bin10010010100111101…
…101011111101100001
31212210110122020022102
4102110331223331201
5310300320134001
613012422420145
71264444214045
oct222475537541
955713566272
1019679068001
11838935906a
123992591655
131b1805b448
14d49824025
157a29c4e6b
hex494f6bf61

19679068001 has 4 divisors (see below), whose sum is σ = 19679354772. Its totient is φ = 19678781232.

The previous prime is 19679067997. The next prime is 19679068027. The reversal of 19679068001 is 10086097691.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10086097691 = 16576086963.

It can be written as a sum of positive squares in 2 ways, for example, as 15460435600 + 4218632401 = 124340^2 + 64951^2 .

It is a cyclic number.

It is not a de Polignac number, because 19679068001 - 22 = 19679067997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19679068061) 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, 27191 + ... + 200243.

It is an arithmetic number, because the mean of its divisors is an integer number (4919838693).

Almost surely, 219679068001 is an apocalyptic number.

It is an amenable number.

19679068001 is a deficient number, since it is larger than the sum of its proper divisors (286771).

19679068001 is a wasteful number, since it uses less digits than its factorization.

19679068001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286770.

The product of its (nonzero) digits is 163296, while the sum is 47.

The spelling of 19679068001 in words is "nineteen billion, six hundred seventy-nine million, sixty-eight thousand, one".

Divisors: 1 113717 173053 19679068001