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10221103031 = 31329713001
BaseRepresentation
bin10011000010011100…
…11010011110110111
3222101022210211110112
421201032122132313
5131413100244111
64410121413235
7511200641126
oct114116323667
928338724415
1010221103031
114375600a97
121b9303a21b
13c6b752c79
146cd679abd
153ec4d4e8b
hex26139a7b7

10221103031 has 4 divisors (see below), whose sum is σ = 10550816064. Its totient is φ = 9891390000.

The previous prime is 10221103021. The next prime is 10221103049. The reversal of 10221103031 is 13030112201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10221103031 - 210 = 10221102007 is a prime.

It is a super-2 number, since 2×102211030312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10221102997 and 10221103015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221103021) 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, 164856470 + ... + 164856531.

It is an arithmetic number, because the mean of its divisors is an integer number (2637704016).

Almost surely, 210221103031 is an apocalyptic number.

10221103031 is a deficient number, since it is larger than the sum of its proper divisors (329713033).

10221103031 is an equidigital number, since it uses as much as digits as its factorization.

10221103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329713032.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10221103031 its reverse (13030112201), we get a palindrome (23251215232).

The spelling of 10221103031 in words is "ten billion, two hundred twenty-one million, one hundred three thousand, thirty-one".

Divisors: 1 31 329713001 10221103031