Base | Representation |
---|---|
bin | 110011001100… |
… | …011011111101 |
3 | 221020211011121 |
4 | 303030123331 |
5 | 11413422120 |
6 | 1155350541 |
7 | 222033124 |
oct | 63143375 |
9 | 27224147 |
10 | 13420285 |
11 | 763694a |
12 | 45b2451 |
13 | 2a1b5c8 |
14 | 1ad4abb |
15 | 12a15aa |
hex | ccc6fd |
13420285 has 4 divisors (see below), whose sum is σ = 16104348. Its totient is φ = 10736224.
The previous prime is 13420271. The next prime is 13420291. The reversal of 13420285 is 58202431.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 3006756 + 10413529 = 1734^2 + 3227^2 .
It is a cyclic number.
It is not a de Polignac number, because 13420285 - 29 = 13419773 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1342024 + ... + 1342033.
It is an arithmetic number, because the mean of its divisors is an integer number (4026087).
Almost surely, 213420285 is an apocalyptic number.
It is an amenable number.
13420285 is a deficient number, since it is larger than the sum of its proper divisors (2684063).
13420285 is an equidigital number, since it uses as much as digits as its factorization.
13420285 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2684062.
The product of its (nonzero) digits is 1920, while the sum is 25.
The square root of 13420285 is about 3663.3707156115. The cubic root of 13420285 is about 237.6405668338.
The spelling of 13420285 in words is "thirteen million, four hundred twenty thousand, two hundred eighty-five".
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