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10224040021 = 134611705997
BaseRepresentation
bin10011000010110011…
…00111100001010101
3222101112100001020221
421201121213201111
5131414323240041
64410304354341
7511234622566
oct114131474125
928345301227
1010224040021
114377227658
121b940159b1
13c6c240a30
146cdc0216d
153ec8b52d1
hex261667855

10224040021 has 8 divisors (see below), whose sum is σ = 11034395064. Its totient is φ = 9417097920.

The previous prime is 10224040009. The next prime is 10224040037. The reversal of 10224040021 is 12004042201.

10224040021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2211820900 + 8012219121 = 47030^2 + 89511^2 .

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 10224040021 - 211 = 10224037973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10224039977 and 10224040004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10224040721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 847006 + ... + 858991.

It is an arithmetic number, because the mean of its divisors is an integer number (1379299383).

Almost surely, 210224040021 is an apocalyptic number.

It is an amenable number.

10224040021 is a deficient number, since it is larger than the sum of its proper divisors (810355043).

10224040021 is a wasteful number, since it uses less digits than its factorization.

10224040021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706471.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 10224040021 its reverse (12004042201), we get a palindrome (22228082222).

The spelling of 10224040021 in words is "ten billion, two hundred twenty-four million, forty thousand, twenty-one".

Divisors: 1 13 461 5993 1705997 22177961 786464617 10224040021