Search a number
-
+
54681841 = 61988339
BaseRepresentation
bin1101000010011…
…0000011110001
310210220010101101
43100212003301
5102444304331
65232004401
71232534164
oct320460361
9123803341
1054681841
1128959305
1216390701
13b437426
147395adb
154c02061
hex34260f1

54681841 has 4 divisors (see below), whose sum is σ = 54770800. Its totient is φ = 54592884.

The previous prime is 54681793. The next prime is 54681859. The reversal of 54681841 is 14818645.

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 a de Polignac number, because none of the positive numbers 2k-54681841 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 54681841.

It is not an unprimeable number, because it can be changed into a prime (54682841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43551 + ... + 44788.

It is an arithmetic number, because the mean of its divisors is an integer number (13692700).

Almost surely, 254681841 is an apocalyptic number.

It is an amenable number.

54681841 is a deficient number, since it is larger than the sum of its proper divisors (88959).

54681841 is an equidigital number, since it uses as much as digits as its factorization.

54681841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88958.

The product of its digits is 30720, while the sum is 37.

The square root of 54681841 is about 7394.7171007416. The cubic root of 54681841 is about 379.5605284180.

The spelling of 54681841 in words is "fifty-four million, six hundred eighty-one thousand, eight hundred forty-one".

Divisors: 1 619 88339 54681841