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10023230321 = 13771017717
BaseRepresentation
bin10010101010110111…
…00101101101110001
3221212112110212010122
421111123211231301
5131011421332241
64334332340025
7503246023556
oct112533455561
927775425118
1010023230321
114283941325
121b38914615
13c39762020
146b128ca2d
153d9e4b04b
hex2556e5b71

10023230321 has 4 divisors (see below), whose sum is σ = 10794248052. Its totient is φ = 9252212592.

The previous prime is 10023230317. The next prime is 10023230323. The reversal of 10023230321 is 12303232001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12303232001 = 107391145659.

It can be written as a sum of positive squares in 2 ways, for example, as 5759140321 + 4264090000 = 75889^2 + 65300^2 .

It is a cyclic number.

It is not a de Polignac number, because 10023230321 - 22 = 10023230317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10023230321.

It is not an unprimeable number, because it can be changed into a prime (10023230323) 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, 385508846 + ... + 385508871.

It is an arithmetic number, because the mean of its divisors is an integer number (2698562013).

Almost surely, 210023230321 is an apocalyptic number.

It is an amenable number.

10023230321 is a deficient number, since it is larger than the sum of its proper divisors (771017731).

10023230321 is an equidigital number, since it uses as much as digits as its factorization.

10023230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771017730.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 10023230321 its reverse (12303232001), we get a palindrome (22326462322).

It can be divided in two parts, 1002 and 3230321, that added together give a palindrome (3231323).

The spelling of 10023230321 in words is "ten billion, twenty-three million, two hundred thirty thousand, three hundred twenty-one".

Divisors: 1 13 771017717 10023230321