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13381299 = 324371487
BaseRepresentation
bin110011000010…
…111010110011
3221011211200200
4303002322303
511411200144
61154450243
7221511351
oct63027263
927154620
1013381299
11760a628
124593983
132a06939
141ac47d1
151294c69
hexcc2eb3

13381299 has 24 divisors (see below), whose sum is σ = 20097792. Its totient is φ = 8573040.

The previous prime is 13381289. The next prime is 13381327. The reversal of 13381299 is 99218331.

13381299 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13381299 - 217 = 13250227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13381279) 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 23 ways as a sum of consecutive naturals, for example, 27234 + ... + 27720.

It is an arithmetic number, because the mean of its divisors is an integer number (837408).

Almost surely, 213381299 is an apocalyptic number.

13381299 is a deficient number, since it is larger than the sum of its proper divisors (6716493).

13381299 is a wasteful number, since it uses less digits than its factorization.

13381299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 604 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 13381299 is about 3658.0457897626. The cubic root of 13381299 is about 237.4102279367.

It can be divided in two parts, 1 and 3381299, that added together give a triangular number (3381300 = T2600).

The spelling of 13381299 in words is "thirteen million, three hundred eighty-one thousand, two hundred ninety-nine".

Divisors: 1 3 9 43 71 129 213 387 487 639 1461 3053 4383 9159 20941 27477 34577 62823 103731 188469 311193 1486811 4460433 13381299