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13228033 = 713612383
BaseRepresentation
bin110010011101…
…100000000001
3220220001110011
4302131200001
511341244113
61151304521
7220302460
oct62354001
926801404
1013228033
117515465
12451b141
132981c50
141a849d7
15126463d
hexc9d801

13228033 has 16 divisors (see below), whose sum is σ = 16554496. Its totient is φ = 10290240.

The previous prime is 13228021. The next prime is 13228037. The reversal of 13228033 is 33082231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13228033 - 25 = 13228001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13227995 and 13228013.

It is not an unprimeable number, because it can be changed into a prime (13228037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4360 + ... + 6742.

It is an arithmetic number, because the mean of its divisors is an integer number (1034656).

Almost surely, 213228033 is an apocalyptic number.

13228033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13228033 is a deficient number, since it is larger than the sum of its proper divisors (3326463).

13228033 is a wasteful number, since it uses less digits than its factorization.

13228033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 13228033 is about 3637.0362934675. The cubic root of 13228033 is about 236.5003329917.

The spelling of 13228033 in words is "thirteen million, two hundred twenty-eight thousand, thirty-three".

Divisors: 1 7 13 61 91 427 793 2383 5551 16681 30979 145363 216853 1017541 1889719 13228033