Search a number
-
+
545222500 = 22544672
BaseRepresentation
bin100000011111110…
…110111101100100
31101222221011122221
4200133312331210
52104034110000
6130034002124
716340212654
oct4037667544
91358834587
10545222500
1125a844809
12132716344
1388c59a84
14525a8364
1532cec61a
hex207f6f64

545222500 has 45 divisors (see below), whose sum is σ = 1194851119. Its totient is φ = 217622000.

The previous prime is 545222471. The next prime is 545222507. The reversal of 545222500 is 5222545.

It is a happy number.

The square root of 545222500 is 23350.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 42745444 + 502477056 = 6538^2 + 22416^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545222507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1167267 + ... + 1167733.

Almost surely, 2545222500 is an apocalyptic number.

545222500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

545222500 is the 23350-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545222500

545222500 is an abundant number, since it is smaller than the sum of its proper divisors (649628619).

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

545222500 is an frugal number, since it uses more digits than its factorization.

545222500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The cubic root of 545222500 is about 816.9420608541.

Multiplying 545222500 by its sum of digits (25), we get a square (13630562500 = 1167502).

545222500 divided by its sum of digits (25) gives a square (21808900 = 46702).

The spelling of 545222500 in words is "five hundred forty-five million, two hundred twenty-two thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 467 500 625 934 1250 1868 2335 2500 4670 9340 11675 23350 46700 58375 116750 218089 233500 291875 436178 583750 872356 1090445 1167500 2180890 4361780 5452225 10904450 21808900 27261125 54522250 109044500 136305625 272611250 545222500