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13420821482 = 26710410741
BaseRepresentation
bin11000111111111000…
…10111101111101010
31021122022122101000022
430133330113233222
5204441212241412
610055422440442
7653403046265
oct143774275752
937568571008
1013420821482
115767781902
122726733122
13135b6235b3
149145cdcdc
15538379a72
hex31ff17bea

13420821482 has 4 divisors (see below), whose sum is σ = 20131232226. Its totient is φ = 6710410740.

The previous prime is 13420821419. The next prime is 13420821497. The reversal of 13420821482 is 28412802431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28412802431 = 132185600187.

It can be written as a sum of positive squares in only one way, i.e., 11202317281 + 2218504201 = 105841^2 + 47101^2 .

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 as a sum of consecutive naturals, namely, 3355205369 + ... + 3355205372.

Almost surely, 213420821482 is an apocalyptic number.

13420821482 is a deficient number, since it is larger than the sum of its proper divisors (6710410744).

13420821482 is an equidigital number, since it uses as much as digits as its factorization.

13420821482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710410743.

The product of its (nonzero) digits is 24576, while the sum is 35.

The spelling of 13420821482 in words is "thirteen billion, four hundred twenty million, eight hundred twenty-one thousand, four hundred eighty-two".

Divisors: 1 2 6710410741 13420821482