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231105022 = 2972414943
BaseRepresentation
bin11011100011001…
…10000111111110
3121002212100111021
431301212013332
5433130330042
634533214354
75504234401
oct1561460776
9532770437
10231105022
111094a8695
12654913ba
1338b58245
142299bd38
1515450867
hexdc661fe

231105022 has 16 divisors (see below), whose sum is σ = 351755712. Its totient is φ = 113863680.

The previous prime is 231105019. The next prime is 231105029. The reversal of 231105022 is 220501132.

It is a junction number, because it is equal to n+sod(n) for n = 231104987 and 231105005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231105029) 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, 44283 + ... + 49225.

It is an arithmetic number, because the mean of its divisors is an integer number (21984732).

Almost surely, 2231105022 is an apocalyptic number.

231105022 is a deficient number, since it is larger than the sum of its proper divisors (120650690).

231105022 is a wasteful number, since it uses less digits than its factorization.

231105022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5283.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 231105022 is about 15202.1387311128. The cubic root of 231105022 is about 613.6722159088.

Adding to 231105022 its reverse (220501132), we get a palindrome (451606154).

The spelling of 231105022 in words is "two hundred thirty-one million, one hundred five thousand, twenty-two".

Divisors: 1 2 97 194 241 482 4943 9886 23377 46754 479471 958942 1191263 2382526 115552511 231105022