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10231323221 = 72950400607
BaseRepresentation
bin10011000011101010…
…11001101001010101
3222102001001001221002
421201311121221111
5131423204320341
64411124433045
7511353545450
oct114165315125
928361031832
1010231323221
114380351629
121b96548785
13c708c0b12
146d0b7a497
153ed35329b
hex261d59a55

10231323221 has 8 divisors (see below), whose sum is σ = 12096145920. Its totient is φ = 8467301808.

The previous prime is 10231323211. The next prime is 10231323283. The reversal of 10231323221 is 12232313201.

10231323221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10231323221 - 218 = 10231061077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10231323193 and 10231323202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231323211) 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 7 ways as a sum of consecutive naturals, for example, 25200101 + ... + 25200506.

It is an arithmetic number, because the mean of its divisors is an integer number (1512018240).

Almost surely, 210231323221 is an apocalyptic number.

It is an amenable number.

10231323221 is a deficient number, since it is larger than the sum of its proper divisors (1864822699).

10231323221 is an equidigital number, since it uses as much as digits as its factorization.

10231323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50400643.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 10231323221 its reverse (12232313201), we get a palindrome (22463636422).

The spelling of 10231323221 in words is "ten billion, two hundred thirty-one million, three hundred twenty-three thousand, two hundred twenty-one".

Divisors: 1 7 29 203 50400607 352804249 1461617603 10231323221