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13471489 = 6723001
BaseRepresentation
bin110011011000…
…111100000001
3221100102102001
4303120330001
511422041424
61200424001
7222335323
oct63307401
927312361
1013471489
117671369
124618001
132a389c5
141b09613
1512b1844
hexcd8f01

13471489 has 6 divisors (see below), whose sum is σ = 13680114. Its totient is φ = 13266000.

The previous prime is 13471483. The next prime is 13471501. The reversal of 13471489 is 98417431.

It can be written as a sum of positive squares in only one way, i.e., 11675889 + 1795600 = 3417^2 + 1340^2 .

It is not a de Polignac number, because 13471489 - 211 = 13469441 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 (13471483) 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 5 ways as a sum of consecutive naturals, for example, 2989 + ... + 5989.

It is an arithmetic number, because the mean of its divisors is an integer number (2280019).

Almost surely, 213471489 is an apocalyptic number.

It is an amenable number.

13471489 is a deficient number, since it is larger than the sum of its proper divisors (208625).

13471489 is an frugal number, since it uses more digits than its factorization.

13471489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135 (or 3068 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 13471489 is about 3670.3527078470. The cubic root of 13471489 is about 237.9424159818.

The spelling of 13471489 in words is "thirteen million, four hundred seventy-one thousand, four hundred eighty-nine".

Divisors: 1 67 3001 4489 201067 13471489