Search a number
-
+
14428197 = 327232717
BaseRepresentation
bin110111000010…
…100000100101
31000011000202200
4313002200211
512143200242
61233125113
7233431500
oct67024045
930130680
1014428197
118165133
1249b9799
132cb22c4
141cb8137
15140004c
hexdc2825

14428197 has 18 divisors (see below), whose sum is σ = 24244038. Its totient is φ = 8244432.

The previous prime is 14428157. The next prime is 14428217. The reversal of 14428197 is 79182441.

It can be written as a sum of positive squares in only one way, i.e., 14130081 + 298116 = 3759^2 + 546^2 .

It is not a de Polignac number, because 14428197 - 27 = 14428069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14428157) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15918 + ... + 16799.

It is an arithmetic number, because the mean of its divisors is an integer number (1346891).

Almost surely, 214428197 is an apocalyptic number.

It is an amenable number.

14428197 is a deficient number, since it is larger than the sum of its proper divisors (9815841).

14428197 is a wasteful number, since it uses less digits than its factorization.

14428197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32737 (or 32727 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 14428197 is about 3798.4466562004. The cubic root of 14428197 is about 243.4467724451.

The spelling of 14428197 in words is "fourteen million, four hundred twenty-eight thousand, one hundred ninety-seven".

Divisors: 1 3 7 9 21 49 63 147 441 32717 98151 229019 294453 687057 1603133 2061171 4809399 14428197