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13187282 = 223392819
BaseRepresentation
bin110010010011…
…100011010010
3220210222112212
4302103203102
511333443112
61150352122
7220042613
oct62234322
926728485
1013187282
117497889
1244bb642
132969534
141a73c0a
151257522
hexc938d2

13187282 has 8 divisors (see below), whose sum is σ = 19796400. Its totient is φ = 6588484.

The previous prime is 13187263. The next prime is 13187309. The reversal of 13187282 is 28278131.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3269 + ... + 6087.

It is an arithmetic number, because the mean of its divisors is an integer number (2474550).

Almost surely, 213187282 is an apocalyptic number.

13187282 is a deficient number, since it is larger than the sum of its proper divisors (6609118).

13187282 is a wasteful number, since it uses less digits than its factorization.

13187282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5160.

The product of its digits is 5376, while the sum is 32.

The square root of 13187282 is about 3631.4297459816. The cubic root of 13187282 is about 236.2572245675.

The spelling of 13187282 in words is "thirteen million, one hundred eighty-seven thousand, two hundred eighty-two".

Divisors: 1 2 2339 2819 4678 5638 6593641 13187282