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13671898 = 27986531
BaseRepresentation
bin110100001001…
…110111011010
3221201121022121
4310021313122
512000000043
61205011454
7224131522
oct64116732
927647277
1013671898
117798999
1246b3b8a
132aa8ca6
141b5c682
151300ded
hexd09dda

13671898 has 8 divisors (see below), whose sum is σ = 20767680. Its totient is φ = 6749340.

The previous prime is 13671883. The next prime is 13671919. The reversal of 13671898 is 89817631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 43108 + ... + 43423.

It is an arithmetic number, because the mean of its divisors is an integer number (2595960).

Almost surely, 213671898 is an apocalyptic number.

13671898 is a deficient number, since it is larger than the sum of its proper divisors (7095782).

13671898 is an equidigital number, since it uses as much as digits as its factorization.

13671898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86612.

The product of its digits is 72576, while the sum is 43.

The square root of 13671898 is about 3697.5529746036. The cubic root of 13671898 is about 239.1165319338.

The spelling of 13671898 in words is "thirteen million, six hundred seventy-one thousand, eight hundred ninety-eight".

Divisors: 1 2 79 158 86531 173062 6835949 13671898