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13485389 = 22759407
BaseRepresentation
bin110011011100…
…010101001101
3221101010110212
4303130111031
511423013024
61201012205
7222424001
oct63342515
927333425
1013485389
117680855
124624065
132a42128
141b10701
1512b5a0e
hexcdc54d

13485389 has 4 divisors (see below), whose sum is σ = 13545024. Its totient is φ = 13425756.

The previous prime is 13485361. The next prime is 13485391. The reversal of 13485389 is 98358431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98358431 = 103195401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13485389 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 (13485349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29477 + ... + 29930.

It is an arithmetic number, because the mean of its divisors is an integer number (3386256).

Almost surely, 213485389 is an apocalyptic number.

It is an amenable number.

13485389 is a deficient number, since it is larger than the sum of its proper divisors (59635).

13485389 is an equidigital number, since it uses as much as digits as its factorization.

13485389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59634.

The product of its digits is 103680, while the sum is 41.

The square root of 13485389 is about 3672.2457706423. The cubic root of 13485389 is about 238.0242248722.

The spelling of 13485389 in words is "thirteen million, four hundred eighty-five thousand, three hundred eighty-nine".

Divisors: 1 227 59407 13485389