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13228695 = 325734027
BaseRepresentation
bin110010011101…
…101010010111
3220220002100200
4302131222113
511341304240
61151311543
7220304424
oct62355227
926802320
1013228695
117515a07
12451b5b3
13298233c
141a84d4b
151264930
hexc9da97

13228695 has 24 divisors (see below), whose sum is σ = 23249616. Its totient is φ = 6956928.

The previous prime is 13228687. The next prime is 13228717. The reversal of 13228695 is 59682231.

It is not a de Polignac number, because 13228695 - 23 = 13228687 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1272 + ... + 5298.

It is an arithmetic number, because the mean of its divisors is an integer number (968734).

Almost surely, 213228695 is an apocalyptic number.

13228695 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13228695 is a deficient number, since it is larger than the sum of its proper divisors (10020921).

13228695 is a wasteful number, since it uses less digits than its factorization.

13228695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111 (or 4108 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 13228695 is about 3637.1273004942. The cubic root of 13228695 is about 236.5042781640.

The spelling of 13228695 in words is "thirteen million, two hundred twenty-eight thousand, six hundred ninety-five".

Divisors: 1 3 5 9 15 45 73 219 365 657 1095 3285 4027 12081 20135 36243 60405 181215 293971 881913 1469855 2645739 4409565 13228695