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10001232331 = 19526380649
BaseRepresentation
bin10010101000001111…
…01011000111001011
3221211000002020120021
421110013223013023
5130440303413311
64332225041311
7502561033516
oct112407530713
927730066507
1010001232331
114272486972
121b31486237
13c3502c36c
146ac3a3d7d
153d8053171
hex2541eb1cb

10001232331 has 4 divisors (see below), whose sum is σ = 10527613000. Its totient is φ = 9474851664.

The previous prime is 10001232281. The next prime is 10001232383. The reversal of 10001232331 is 13323210001.

10001232331 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, and also an emirpimes, since its reverse is a distinct semiprime: 13323210001 = 19701221579.

It is a cyclic number.

It is not a de Polignac number, because 10001232331 - 27 = 10001232203 is a prime.

It is a super-2 number, since 2×100012323312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001232391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263190306 + ... + 263190343.

It is an arithmetic number, because the mean of its divisors is an integer number (2631903250).

Almost surely, 210001232331 is an apocalyptic number.

10001232331 is a deficient number, since it is larger than the sum of its proper divisors (526380669).

10001232331 is an equidigital number, since it uses as much as digits as its factorization.

10001232331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526380668.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 10001232331 its reverse (13323210001), we get a palindrome (23324442332).

The spelling of 10001232331 in words is "ten billion, one million, two hundred thirty-two thousand, three hundred thirty-one".

Divisors: 1 19 526380649 10001232331