Search a number
-
+
54440000 = 26541361
BaseRepresentation
bin1100111110101…
…1000001000000
310210102211122022
43033223001000
5102414040000
65222501012
71230506126
oct317530100
9123384568
1054440000
112880363a
1216294768
13b381324
147331916
154ba5585
hex33eb040

54440000 has 70 divisors (see below), whose sum is σ = 135092694. Its totient is φ = 21760000.

The previous prime is 54439993. The next prime is 54440027. The reversal of 54440000 is 4445.

It can be written as a sum of positive squares in 5 ways, for example, as 31091776 + 23348224 = 5576^2 + 4832^2 .

It is a nialpdrome in base 10.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 39320 + ... + 40680.

Almost surely, 254440000 is an apocalyptic number.

54440000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67546347).

54440000 is an abundant number, since it is smaller than the sum of its proper divisors (80652694).

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

54440000 is an equidigital number, since it uses as much as digits as its factorization.

54440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393 (or 1368 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 54440000 is about 7378.3466982787. The cubic root of 54440000 is about 379.0001415566. Note that the first 3 decimals are identical.

Adding to 54440000 its reverse (4445), we get a palindrome (54444445).

The spelling of 54440000 in words is "fifty-four million, four hundred forty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 625 800 1000 1250 1361 1600 2000 2500 2722 4000 5000 5444 6805 8000 10000 10888 13610 20000 21776 27220 34025 40000 43552 54440 68050 87104 108880 136100 170125 217760 272200 340250 435520 544400 680500 850625 1088800 1361000 1701250 2177600 2722000 3402500 5444000 6805000 10888000 13610000 27220000 54440000