Search a number
-
+
54231405 = 355097103
BaseRepresentation
bin1100111011100…
…0000101101101
310210001020111120
43032320011231
5102340401110
65214211153
71225650024
oct316700555
9123036446
1054231405
1128680948
12161b3ab9
13b30a3b7
1472b98bb
154b63870
hex33b816d

54231405 has 16 divisors (see below), whose sum is σ = 86952960. Its totient is φ = 28862528.

The previous prime is 54231403. The next prime is 54231407. The reversal of 54231405 is 50413245.

It is an interprime number because it is at equal distance from previous prime (54231403) and next prime (54231407).

It is a cyclic number.

It is not a de Polignac number, because 54231405 - 21 = 54231403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54231403) 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, 4084 + ... + 11186.

It is an arithmetic number, because the mean of its divisors is an integer number (5434560).

Almost surely, 254231405 is an apocalyptic number.

It is an amenable number.

54231405 is a deficient number, since it is larger than the sum of its proper divisors (32721555).

54231405 is a wasteful number, since it uses less digits than its factorization.

54231405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7620.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 54231405 is about 7364.1975122888. The cubic root of 54231405 is about 378.5154567439.

The spelling of 54231405 in words is "fifty-four million, two hundred thirty-one thousand, four hundred five".

Divisors: 1 3 5 15 509 1527 2545 7103 7635 21309 35515 106545 3615427 10846281 18077135 54231405