Search a number
-
+
27868043 = 7291071283
BaseRepresentation
bin110101001001…
…1101110001011
31221102211202202
41222103232023
524113234133
62433150415
7455605640
oct152235613
957384682
1027868043
1114804745
1293bb40b
135a09788
1439b5dc7
1526a72e8
hex1a93b8b

27868043 has 16 divisors (see below), whose sum is σ = 33281280. Its totient is φ = 22829856.

The previous prime is 27868037. The next prime is 27868073. The reversal of 27868043 is 34086872.

It is not a de Polignac number, because 27868043 - 26 = 27867979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27867988 and 27868006.

It is not an unprimeable number, because it can be changed into a prime (27868013) 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, 21080 + ... + 22362.

It is an arithmetic number, because the mean of its divisors is an integer number (2080080).

Almost surely, 227868043 is an apocalyptic number.

27868043 is a deficient number, since it is larger than the sum of its proper divisors (5413237).

27868043 is a wasteful number, since it uses less digits than its factorization.

27868043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 27868043 is about 5279.0191323768. The cubic root of 27868043 is about 303.1811230337.

The spelling of 27868043 in words is "twenty-seven million, eight hundred sixty-eight thousand, forty-three".

Divisors: 1 7 29 107 203 749 1283 3103 8981 21721 37207 137281 260449 960967 3981149 27868043