Search a number
-
+
27429841 = 127215983
BaseRepresentation
bin110100010100…
…0101111010001
31220121120200001
41220220233101
524010223331
62415530001
7452102245
oct150505721
956546601
1027429841
111453549a
129229901
1358b519a
143900425
15261c561
hex1a28bd1

27429841 has 4 divisors (see below), whose sum is σ = 27645952. Its totient is φ = 27213732.

The previous prime is 27429821. The next prime is 27429847. The reversal of 27429841 is 14892472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27429841 - 27 = 27429713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27429841.

It is not an unprimeable number, because it can be changed into a prime (27429847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107865 + ... + 108118.

It is an arithmetic number, because the mean of its divisors is an integer number (6911488).

Almost surely, 227429841 is an apocalyptic number.

It is an amenable number.

27429841 is a deficient number, since it is larger than the sum of its proper divisors (216111).

27429841 is a wasteful number, since it uses less digits than its factorization.

27429841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216110.

The product of its digits is 32256, while the sum is 37.

The square root of 27429841 is about 5237.3505706607. The cubic root of 27429841 is about 301.5836293874.

The spelling of 27429841 in words is "twenty-seven million, four hundred twenty-nine thousand, eight hundred forty-one".

Divisors: 1 127 215983 27429841