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13432489 = 75413547
BaseRepresentation
bin110011001111…
…011010101001
3221021102220121
4303033122221
511414314424
61155523241
7222113530
oct63173251
927242817
1013432489
117645034
1245b9521
132a24025
141ad9317
1512a4ee4
hexccf6a9

13432489 has 8 divisors (see below), whose sum is σ = 15384128. Its totient is φ = 11489040.

The previous prime is 13432477. The next prime is 13432493. The reversal of 13432489 is 98423431.

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 13432489 - 211 = 13430441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13432429) 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, 2014 + ... + 5560.

It is an arithmetic number, because the mean of its divisors is an integer number (1923016).

Almost surely, 213432489 is an apocalyptic number.

It is an amenable number.

13432489 is a deficient number, since it is larger than the sum of its proper divisors (1951639).

13432489 is an equidigital number, since it uses as much as digits as its factorization.

13432489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095.

The product of its digits is 20736, while the sum is 34.

The square root of 13432489 is about 3665.0360161941. The cubic root of 13432489 is about 237.7125793833.

It can be divided in two parts, 134 and 32489, that added together give a palindrome (32623).

The spelling of 13432489 in words is "thirteen million, four hundred thirty-two thousand, four hundred eighty-nine".

Divisors: 1 7 541 3547 3787 24829 1918927 13432489