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38683638683 = 183672106149
BaseRepresentation
bin100100000001101110…
…010111101110011011
310200211221002110020122
4210001232113232123
51113211002414213
625434312343455
72536421334464
oct440156275633
9120757073218
1038683638683
11154509a6328
1275b70a4b8b
133856439441
141c2d82bd6b
151016163d08
hex901b97b9b

38683638683 has 4 divisors (see below), whose sum is σ = 38685763200. Its totient is φ = 38681514168.

The previous prime is 38683638667. The next prime is 38683638689.

38683638683 is nontrivially palindromic in base 10.

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 38683638683 - 24 = 38683638667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38683638689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1034708 + ... + 1071441.

It is an arithmetic number, because the mean of its divisors is an integer number (9671440800).

Almost surely, 238683638683 is an apocalyptic number.

38683638683 is a deficient number, since it is larger than the sum of its proper divisors (2124517).

38683638683 is a wasteful number, since it uses less digits than its factorization.

38683638683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124516.

The product of its digits is 71663616, while the sum is 62.

The spelling of 38683638683 in words is "thirty-eight billion, six hundred eighty-three million, six hundred thirty-eight thousand, six hundred eighty-three".

Divisors: 1 18367 2106149 38683638683