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331243311982 = 21128153581901
BaseRepresentation
bin1001101000111111010…
…00111101001101101110
31011122222220201201112011
410310133220331031232
520411341241440412
6412100541431434
732634342460432
oct4643750751556
91148886651464
10331243311982
11118530239aa0
125424486b57a
132530b97136b
14120647529c2
15893a52b7a7
hex4d1fa3d36e

331243311982 has 16 divisors (see below), whose sum is σ = 543963469104. Its totient is φ = 150029320000.

The previous prime is 331243311979. The next prime is 331243312027. The reversal of 331243311982 is 289113342133.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26784769 + ... + 26797132.

It is an arithmetic number, because the mean of its divisors is an integer number (33997716819).

Almost surely, 2331243311982 is an apocalyptic number.

331243311982 is a deficient number, since it is larger than the sum of its proper divisors (212720157122).

331243311982 is a wasteful number, since it uses less digits than its factorization.

331243311982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53582195.

The product of its digits is 93312, while the sum is 40.

The spelling of 331243311982 in words is "three hundred thirty-one billion, two hundred forty-three million, three hundred eleven thousand, nine hundred eighty-two".

Divisors: 1 2 11 22 281 562 3091 6182 53581901 107163802 589400911 1178801822 15056514181 30113028362 165621655991 331243311982