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10223312231 = 11929392021
BaseRepresentation
bin10011000010101101…
…10101110101100111
3222101110222001220202
421201112311311213
5131414131442411
64410241021115
7511225502006
oct114126656547
928343861822
1010223312231
11437687a880
121b9392479b
13c6c0476a2
146cda92c3d
153ec7be83b
hex2615b5d67

10223312231 has 4 divisors (see below), whose sum is σ = 11152704264. Its totient is φ = 9293920200.

The previous prime is 10223312227. The next prime is 10223312233. The reversal of 10223312231 is 13221332201.

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 10223312231 - 22 = 10223312227 is a prime.

It is a super-2 number, since 2×102233122312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10223312233) 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, 464696000 + ... + 464696021.

It is an arithmetic number, because the mean of its divisors is an integer number (2788176066).

Almost surely, 210223312231 is an apocalyptic number.

10223312231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10223312231 is a deficient number, since it is larger than the sum of its proper divisors (929392033).

10223312231 is an equidigital number, since it uses as much as digits as its factorization.

10223312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929392032.

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

Adding to 10223312231 its reverse (13221332201), we get a palindrome (23444644432).

The spelling of 10223312231 in words is "ten billion, two hundred twenty-three million, three hundred twelve thousand, two hundred thirty-one".

Divisors: 1 11 929392021 10223312231