Search a number
-
+
38680011634243 = 75525715947749
BaseRepresentation
bin10001100101101111001000…
…10110100111011001000011
312001221202212111221101000111
420302313210112213121003
520032213130434243433
6214133204012332151
711101352514052240
oct1062674426473103
9161852774841014
1038680011634243
11113631121aa941
124408541774057
13187768133a085
1497a1a03d65c7
154712510c7dcd
hex232de45a7643

38680011634243 has 4 divisors (see below), whose sum is σ = 44205727582000. Its totient is φ = 33154295686488.

The previous prime is 38680011634237. The next prime is 38680011634333. The reversal of 38680011634243 is 34243611008683.

38680011634243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 38680011634243 - 237 = 38542572680771 is a prime.

It is a super-2 number, since 2×386800116342432 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38680011634343) 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, 2762857973868 + ... + 2762857973881.

It is an arithmetic number, because the mean of its divisors is an integer number (11051431895500).

Almost surely, 238680011634243 is an apocalyptic number.

38680011634243 is a deficient number, since it is larger than the sum of its proper divisors (5525715947757).

38680011634243 is an equidigital number, since it uses as much as digits as its factorization.

38680011634243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525715947756.

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 38680011634243 in words is "thirty-eight trillion, six hundred eighty billion, eleven million, six hundred thirty-four thousand, two hundred forty-three".

Divisors: 1 7 5525715947749 38680011634243