Search a number
-
+
27971241 = 319946853
BaseRepresentation
bin110101010110…
…0111010101001
31221122002022220
41222230322221
524130034431
62435304253
7456515544
oct152547251
957562286
1027971241
1114875231
12944b089
135a4473c
143a0185b
1526c7b96
hex1aacea9

27971241 has 8 divisors (see below), whose sum is σ = 37483200. Its totient is φ = 18553392.

The previous prime is 27971213. The next prime is 27971263. The reversal of 27971241 is 14217972.

27971241 is nontrivially palindromic in base 4.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27971241 - 213 = 27963049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27971201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22830 + ... + 24023.

It is an arithmetic number, because the mean of its divisors is an integer number (4685400).

Almost surely, 227971241 is an apocalyptic number.

It is an amenable number.

27971241 is a deficient number, since it is larger than the sum of its proper divisors (9511959).

27971241 is a wasteful number, since it uses less digits than its factorization.

27971241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47055.

The product of its digits is 7056, while the sum is 33.

The square root of 27971241 is about 5288.7844539176. The cubic root of 27971241 is about 303.5548981660.

The spelling of 27971241 in words is "twenty-seven million, nine hundred seventy-one thousand, two hundred forty-one".

Divisors: 1 3 199 597 46853 140559 9323747 27971241