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13272887 = 19236767
BaseRepresentation
bin110010101000…
…011100110111
3220222022222102
4302220130313
511344213022
61152252315
7220550315
oct62503467
926868872
1013272887
117546131
12454109b
1329994a4
141a970b5
151272a92
hexca8737

13272887 has 6 divisors (see below), whose sum is σ = 14008608. Its totient is φ = 12573972.

The previous prime is 13272881. The next prime is 13272893. The reversal of 13272887 is 78827231.

It is an interprime number because it is at equal distance from previous prime (13272881) and next prime (13272893).

It is not a de Polignac number, because 13272887 - 24 = 13272871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13272887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13272881) 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 5 ways as a sum of consecutive naturals, for example, 18023 + ... + 18744.

It is an arithmetic number, because the mean of its divisors is an integer number (2334768).

Almost surely, 213272887 is an apocalyptic number.

13272887 is a deficient number, since it is larger than the sum of its proper divisors (735721).

13272887 is an equidigital number, since it uses as much as digits as its factorization.

13272887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36805 (or 36786 counting only the distinct ones).

The product of its digits is 37632, while the sum is 38.

The square root of 13272887 is about 3643.1973594633. The cubic root of 13272887 is about 236.7673421662.

The spelling of 13272887 in words is "thirteen million, two hundred seventy-two thousand, eight hundred eighty-seven".

Divisors: 1 19 361 36767 698573 13272887