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3891230011 = 17929324631
BaseRepresentation
bin1110011111101111…
…0111010100111011
3101001012000222002001
43213323313110323
530432123330021
61442042321431
7165266623624
oct34773672473
911035028061
103891230011
111717552779
129071b9277
134a022a186
1428cb1ca4b
1517b93c091
hexe7ef753b

3891230011 has 8 divisors (see below), whose sum is σ = 4120736544. Its totient is φ = 3661791360.

The previous prime is 3891229997. The next prime is 3891230041. The reversal of 3891230011 is 1100321983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3891230011 - 213 = 3891221819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3891230041) 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 7 ways as a sum of consecutive naturals, for example, 145666 + ... + 170296.

It is an arithmetic number, because the mean of its divisors is an integer number (515092068).

Almost surely, 23891230011 is an apocalyptic number.

3891230011 is a deficient number, since it is larger than the sum of its proper divisors (229506533).

3891230011 is a wasteful number, since it uses less digits than its factorization.

3891230011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33941.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 3891230011 is about 62379.7243581598. The cubic root of 3891230011 is about 1572.8801595946.

Adding to 3891230011 its reverse (1100321983), we get a palindrome (4991551994).

The spelling of 3891230011 in words is "three billion, eight hundred ninety-one million, two hundred thirty thousand, eleven".

Divisors: 1 17 9293 24631 157981 418727 228895883 3891230011