Search a number
-
+
13395221 = 73751719
BaseRepresentation
bin110011000110…
…010100010101
3221012112210022
4303012110111
511412121341
61155034525
7221600060
oct63062425
927175708
1013395221
11761a034
12459ba45
132a10088
141ac98d7
151298e4b
hexcc6515

13395221 has 8 divisors (see below), whose sum is σ = 15722880. Its totient is φ = 11171088.

The previous prime is 13395203. The next prime is 13395227. The reversal of 13395221 is 12259331.

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

It is a cyclic number.

It is not a de Polignac number, because 13395221 - 26 = 13395157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13395227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25601 + ... + 26118.

It is an arithmetic number, because the mean of its divisors is an integer number (1965360).

Almost surely, 213395221 is an apocalyptic number.

It is an amenable number.

13395221 is a deficient number, since it is larger than the sum of its proper divisors (2327659).

13395221 is an equidigital number, since it uses as much as digits as its factorization.

13395221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51763.

The product of its digits is 1620, while the sum is 26.

The square root of 13395221 is about 3659.9482236775. The cubic root of 13395221 is about 237.4925338373.

The spelling of 13395221 in words is "thirteen million, three hundred ninety-five thousand, two hundred twenty-one".

Divisors: 1 7 37 259 51719 362033 1913603 13395221