Search a number
-
+
7381073918741 = 41156917933989
BaseRepresentation
bin110101101101000101001…
…0010011111101100010101
3222010121211201202210200112
41223122022102133230111
51431412414410344431
623410452450052405
71361156615062565
oct153321222375425
928117751683615
107381073918741
112396328891776
129b260287a105
13417055c0a603
141b73629c2da5
15cbeea7aec2b
hex6b68a49fb15

7381073918741 has 4 divisors (see below), whose sum is σ = 7381092264300. Its totient is φ = 7381055573184.

The previous prime is 7381073918719. The next prime is 7381073918753. The reversal of 7381073918741 is 1478193701837.

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 1186674707716 + 6194399211025 = 1089346^2 + 2488855^2 .

It is a cyclic number.

It is not a de Polignac number, because 7381073918741 - 238 = 7106196011797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7381073918791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8555426 + ... + 9378563.

It is an arithmetic number, because the mean of its divisors is an integer number (1845273066075).

Almost surely, 27381073918741 is an apocalyptic number.

It is an amenable number.

7381073918741 is a deficient number, since it is larger than the sum of its proper divisors (18345559).

7381073918741 is a wasteful number, since it uses less digits than its factorization.

7381073918741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18345558.

The product of its (nonzero) digits is 7112448, while the sum is 59.

The spelling of 7381073918741 in words is "seven trillion, three hundred eighty-one billion, seventy-three million, nine hundred eighteen thousand, seven hundred forty-one".

Divisors: 1 411569 17933989 7381073918741