Search a number
-
+
12205852458 = 2319910222657
BaseRepresentation
bin10110101111000011…
…01000011100101010
31011111122110112211120
423113201220130222
5144444144234313
65335101440110
7611321014452
oct132741503452
934448415746
1012205852458
1151a3981678
122447870036
1311c69ba907
1483b0c4d62
154b6883d23
hex2d786872a

12205852458 has 16 divisors (see below), whose sum is σ = 24534379200. Its totient is φ = 4048171776.

The previous prime is 12205852441. The next prime is 12205852471. The reversal of 12205852458 is 85425850221.

12205852458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 5110135 + ... + 5112522.

It is an arithmetic number, because the mean of its divisors is an integer number (1533398700).

Almost surely, 212205852458 is an apocalyptic number.

12205852458 is an abundant number, since it is smaller than the sum of its proper divisors (12328526742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12205852458 is a wasteful number, since it uses less digits than its factorization.

12205852458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10222861.

The product of its (nonzero) digits is 256000, while the sum is 42.

The spelling of 12205852458 in words is "twelve billion, two hundred five million, eight hundred fifty-two thousand, four hundred fifty-eight".

Divisors: 1 2 3 6 199 398 597 1194 10222657 20445314 30667971 61335942 2034308743 4068617486 6102926229 12205852458