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13404043 = 193199349
BaseRepresentation
bin110011001000…
…011110001011
3221012222220001
4303020132023
511412412133
61155143431
7221634562
oct63103613
927188801
1013404043
117625724
1245a4b77
132a140b3
141accbd9
15129b87d
hexcc878b

13404043 has 8 divisors (see below), whose sum is σ = 13580000. Its totient is φ = 13229568.

The previous prime is 13404029. The next prime is 13404047. The reversal of 13404043 is 34040431.

13404043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13404043 - 25 = 13404011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13404043.

It is not an unprimeable number, because it can be changed into a prime (13404047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38233 + ... + 38581.

It is an arithmetic number, because the mean of its divisors is an integer number (1697500).

Almost surely, 213404043 is an apocalyptic number.

13404043 is a deficient number, since it is larger than the sum of its proper divisors (175957).

13404043 is a wasteful number, since it uses less digits than its factorization.

13404043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 13404043 is about 3661.1532336137. The cubic root of 13404043 is about 237.5446593764.

Adding to 13404043 its reverse (34040431), we get a palindrome (47444474).

The spelling of 13404043 in words is "thirteen million, four hundred four thousand, forty-three".

Divisors: 1 193 199 349 38407 67357 69451 13404043