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12820298 = 231206779
BaseRepresentation
bin110000111001…
…111101001010
3220010100010212
4300321331022
511240222143
61134441122
7213653651
oct60717512
926110125
1012820298
117267097
1243631a2
13286b49a
1419ba198
1511d3918
hexc39f4a

12820298 has 8 divisors (see below), whose sum is σ = 19850880. Its totient is φ = 6203340.

The previous prime is 12820289. The next prime is 12820303. The reversal of 12820298 is 89202821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103328 + ... + 103451.

It is an arithmetic number, because the mean of its divisors is an integer number (2481360).

Almost surely, 212820298 is an apocalyptic number.

12820298 is a deficient number, since it is larger than the sum of its proper divisors (7030582).

12820298 is a wasteful number, since it uses less digits than its factorization.

12820298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206812.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 12820298 is about 3580.5443720194. The cubic root of 12820298 is about 234.0450031544.

The spelling of 12820298 in words is "twelve million, eight hundred twenty thousand, two hundred ninety-eight".

Divisors: 1 2 31 62 206779 413558 6410149 12820298