Search a number
-
+
54025040 = 245675313
BaseRepresentation
bin1100111000010…
…1101101010000
310202122202102102
43032011231100
5102312300130
65205535532
71224130256
oct316055520
9122582372
1054025040
112854a8a3
12161145a8
13b2674a4
1472645d6
154b22645
hex3385b50

54025040 has 20 divisors (see below), whose sum is σ = 125608404. Its totient is φ = 21609984.

The previous prime is 54025039. The next prime is 54025063. The reversal of 54025040 is 4052045.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12138256 + 41886784 = 3484^2 + 6472^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337577 + ... + 337736.

Almost surely, 254025040 is an apocalyptic number.

It is an amenable number.

54025040 is an abundant number, since it is smaller than the sum of its proper divisors (71583364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54025040 is a wasteful number, since it uses less digits than its factorization.

54025040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675326 (or 675320 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 54025040 is about 7350.1727870847. The cubic root of 54025040 is about 378.0347289462.

Adding to 54025040 its reverse (4052045), we get a palindrome (58077085).

The spelling of 54025040 in words is "fifty-four million, twenty-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 675313 1350626 2701252 3376565 5402504 6753130 10805008 13506260 27012520 54025040