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13398473 = 111218043
BaseRepresentation
bin110011000111…
…000111001001
3221012201020202
4303013013021
511412222343
61155101545
7221612414
oct63070711
927181222
1013398473
117621520
1245a18b5
132a116ba
141acab7b
151299db8
hexcc71c9

13398473 has 4 divisors (see below), whose sum is σ = 14616528. Its totient is φ = 12180420.

The previous prime is 13398461. The next prime is 13398491. The reversal of 13398473 is 37489331.

13398473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 37489331 = 113408121.

It is a cyclic number.

It is not a de Polignac number, because 13398473 - 24 = 13398457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13394473) 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, 609011 + ... + 609032.

It is an arithmetic number, because the mean of its divisors is an integer number (3654132).

Almost surely, 213398473 is an apocalyptic number.

It is an amenable number.

13398473 is a deficient number, since it is larger than the sum of its proper divisors (1218055).

13398473 is a wasteful number, since it uses less digits than its factorization.

13398473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218054.

The product of its digits is 54432, while the sum is 38.

The square root of 13398473 is about 3660.3924652966. The cubic root of 13398473 is about 237.5117512191.

The spelling of 13398473 in words is "thirteen million, three hundred ninety-eight thousand, four hundred seventy-three".

Divisors: 1 11 1218043 13398473