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13424219 = 13797987
BaseRepresentation
bin110011001101…
…011001011011
3221021000120022
4303031121123
511414033334
61155421055
7222050444
oct63153133
927230508
1013424219
1176398a6
1245b478b
132a20333
141ad62cb
1512a282e
hexccd65b

13424219 has 4 divisors (see below), whose sum is σ = 13522344. Its totient is φ = 13326096.

The previous prime is 13424161. The next prime is 13424221. The reversal of 13424219 is 91242431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13424219 is a prime.

It is a super-2 number, since 2×134242192 = 360419311519922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13424269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48857 + ... + 49130.

It is an arithmetic number, because the mean of its divisors is an integer number (3380586).

Almost surely, 213424219 is an apocalyptic number.

13424219 is a deficient number, since it is larger than the sum of its proper divisors (98125).

13424219 is an equidigital number, since it uses as much as digits as its factorization.

13424219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98124.

The product of its digits is 1728, while the sum is 26.

The square root of 13424219 is about 3663.9076134641. The cubic root of 13424219 is about 237.6637850853.

The spelling of 13424219 in words is "thirteen million, four hundred twenty-four thousand, two hundred nineteen".

Divisors: 1 137 97987 13424219