Search a number
-
+
28714288743 = 3271087419303
BaseRepresentation
bin11010101111100000…
…010100011001100111
32202010011000000002200
4122233200110121213
5432301324214433
621105142505543
72034365266350
oct325740243147
982104000080
1028714288743
11111a5516148
1256944352b3
132927bc0aca
1415657a6d27
15b30d0c613
hex6af814667

28714288743 has 24 divisors (see below), whose sum is σ = 47445086208. Its totient is φ = 16393030992.

The previous prime is 28714288693. The next prime is 28714288777. The reversal of 28714288743 is 34788241782.

28714288743 is a `hidden beast` number, since 287 + 14 + 288 + 74 + 3 = 666.

It is not a de Polignac number, because 28714288743 - 26 = 28714288679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28714288743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28714288943) 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, 141171 + ... + 278132.

It is an arithmetic number, because the mean of its divisors is an integer number (1976878592).

Almost surely, 228714288743 is an apocalyptic number.

28714288743 is a deficient number, since it is larger than the sum of its proper divisors (18730797465).

28714288743 is a wasteful number, since it uses less digits than its factorization.

28714288743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420403 (or 420400 counting only the distinct ones).

The product of its digits is 4816896, while the sum is 54.

The spelling of 28714288743 in words is "twenty-eight billion, seven hundred fourteen million, two hundred eighty-eight thousand, seven hundred forty-three".

Divisors: 1 3 7 9 21 63 1087 3261 7609 9783 22827 68481 419303 1257909 2935121 3773727 8805363 26416089 455782361 1367347083 3190476527 4102041249 9571429581 28714288743