Search a number
-
+
55051300 = 2252550513
BaseRepresentation
bin1101001000000…
…0010000100100
310211120220012001
43102000100210
5103043120200
65243535044
71235633263
oct322002044
9124526161
1055051300
1129090947
121652a484
13b536645
1474505da
154c7676a
hex3480424

55051300 has 18 divisors (see below), whose sum is σ = 119461538. Its totient is φ = 22020480.

The previous prime is 55051291. The next prime is 55051313. The reversal of 55051300 is 315055.

It can be written as a sum of positive squares in 3 ways, for example, as 763876 + 54287424 = 874^2 + 7368^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275157 + ... + 275356.

Almost surely, 255051300 is an apocalyptic number.

55051300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55051300 is an abundant number, since it is smaller than the sum of its proper divisors (64410238).

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

55051300 is a wasteful number, since it uses less digits than its factorization.

55051300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550527 (or 550520 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 55051300 is about 7419.6563262728. The cubic root of 55051300 is about 380.4134465834.

Adding to 55051300 its reverse (315055), we get a palindrome (55366355).

The spelling of 55051300 in words is "fifty-five million, fifty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 550513 1101026 2202052 2752565 5505130 11010260 13762825 27525650 55051300