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13199471 = 191993491
BaseRepresentation
bin110010010110…
…100001101111
3220211121021022
4302112201233
511334340341
61150524355
7220123265
oct62264157
926747238
1013199471
1174a5a5a
1245066bb
132971c4c
141a78435
15125ae4b
hexc9686f

13199471 has 8 divisors (see below), whose sum is σ = 13968000. Its totient is φ = 12438360.

The previous prime is 13199467. The next prime is 13199477. The reversal of 13199471 is 17499131.

It is a happy number.

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 13199471 - 22 = 13199467 is a prime.

It is a super-3 number, since 3×131994713 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13199477) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2036 + ... + 5526.

It is an arithmetic number, because the mean of its divisors is an integer number (1746000).

Almost surely, 213199471 is an apocalyptic number.

13199471 is a deficient number, since it is larger than the sum of its proper divisors (768529).

13199471 is a wasteful number, since it uses less digits than its factorization.

13199471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709.

The product of its digits is 6804, while the sum is 35.

The square root of 13199471 is about 3633.1076229586. The cubic root of 13199471 is about 236.3299929746.

The spelling of 13199471 in words is "thirteen million, one hundred ninety-nine thousand, four hundred seventy-one".

Divisors: 1 19 199 3491 3781 66329 694709 13199471