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13420351 = 73375689
BaseRepresentation
bin110011001100…
…011100111111
3221020211021001
4303030130333
511413422401
61155351131
7222033250
oct63143477
927224231
1013420351
1176369aa
1245b24a7
132a1b649
141ad4b27
1512a1601
hexccc73f

13420351 has 8 divisors (see below), whose sum is σ = 15385760. Its totient is φ = 11467008.

The previous prime is 13420331. The next prime is 13420387. The reversal of 13420351 is 15302431.

13420351 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13420351 - 27 = 13420223 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486 + ... + 5203.

It is an arithmetic number, because the mean of its divisors is an integer number (1923220).

Almost surely, 213420351 is an apocalyptic number.

13420351 is a deficient number, since it is larger than the sum of its proper divisors (1965409).

13420351 is an equidigital number, since it uses as much as digits as its factorization.

13420351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6033.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13420351 is about 3663.3797236978. The cubic root of 13420351 is about 237.6409563996.

Adding to 13420351 its reverse (15302431), we get a palindrome (28722782).

The spelling of 13420351 in words is "thirteen million, four hundred twenty thousand, three hundred fifty-one".

Divisors: 1 7 337 2359 5689 39823 1917193 13420351