Search a number
-
+
54405430 = 255440543
BaseRepresentation
bin1100111110001…
…0100100110110
310210101002012221
43033202210312
5102411433210
65222032554
71230303262
oct317424466
9123332187
1054405430
112878a672
121627875a
13b36b681
1473230a2
154b9a1da
hex33e2936

54405430 has 8 divisors (see below), whose sum is σ = 97929792. Its totient is φ = 21762168.

The previous prime is 54405397. The next prime is 54405431. The reversal of 54405430 is 3450445.

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

It is a junction number, because it is equal to n+sod(n) for n = 54405395 and 54405404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54405431) 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, 2720262 + ... + 2720281.

It is an arithmetic number, because the mean of its divisors is an integer number (12241224).

Almost surely, 254405430 is an apocalyptic number.

54405430 is a deficient number, since it is larger than the sum of its proper divisors (43524362).

54405430 is a wasteful number, since it uses less digits than its factorization.

54405430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5440550.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 54405430 is about 7376.0036605197. The cubic root of 54405430 is about 378.9199014807.

Adding to 54405430 its reverse (3450445), we get a palindrome (57855875).

The spelling of 54405430 in words is "fifty-four million, four hundred five thousand, four hundred thirty".

Divisors: 1 2 5 10 5440543 10881086 27202715 54405430