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13230369 = 3217432011
BaseRepresentation
bin110010011110…
…000100100001
3220220011122200
4302132010201
511341332434
61151323413
7220312335
oct62360441
926804580
1013230369
117517199
124520569
132983029
141a857c5
151265199
hexc9e121

13230369 has 24 divisors (see below), whose sum is σ = 20715552. Its totient is φ = 8104320.

The previous prime is 13230361. The next prime is 13230377. The reversal of 13230369 is 96303231.

It is an interprime number because it is at equal distance from previous prime (13230361) and next prime (13230377).

It is not a de Polignac number, because 13230369 - 23 = 13230361 is a prime.

It is a super-2 number, since 2×132303692 = 350085327752322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13230361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5574 + ... + 7584.

It is an arithmetic number, because the mean of its divisors is an integer number (863148).

It is a vampire number, since it can be written as 21936033 (with its own digits).

Almost surely, 213230369 is an apocalyptic number.

It is an amenable number.

13230369 is a deficient number, since it is larger than the sum of its proper divisors (7485183).

13230369 is a wasteful number, since it uses less digits than its factorization.

13230369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077 (or 2074 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 13230369 is about 3637.3574198860. The cubic root of 13230369 is about 236.5142537376.

The spelling of 13230369 in words is "thirteen million, two hundred thirty thousand, three hundred sixty-nine".

Divisors: 1 3 9 17 43 51 129 153 387 731 2011 2193 6033 6579 18099 34187 86473 102561 259419 307683 778257 1470041 4410123 13230369