Search a number
-
+
54868768 = 256128109
BaseRepresentation
bin1101000101001…
…1101100100000
310211020121210121
43101103230200
5103021300033
65240010024
71234243153
oct321235440
9124217717
1054868768
1128a76799
1216460914
13b4a1536
147403c9a
154c3c62d
hex3453b20

54868768 has 24 divisors (see below), whose sum is σ = 109797660. Its totient is φ = 26983680.

The previous prime is 54868757. The next prime is 54868799. The reversal of 54868768 is 86786845.

It can be written as a sum of positive squares in 2 ways, for example, as 33965584 + 20903184 = 5828^2 + 4572^2 .

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 3 ways as a sum of consecutive naturals, for example, 12103 + ... + 16006.

Almost surely, 254868768 is an apocalyptic number.

It is an amenable number.

54868768 is an abundant number, since it is smaller than the sum of its proper divisors (54928892).

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

54868768 is a wasteful number, since it uses less digits than its factorization.

54868768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28180 (or 28172 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 52.

The square root of 54868768 is about 7407.3455434454. The cubic root of 54868768 is about 379.9925390964.

The spelling of 54868768 in words is "fifty-four million, eight hundred sixty-eight thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 32 61 122 244 488 976 1952 28109 56218 112436 224872 449744 899488 1714649 3429298 6858596 13717192 27434384 54868768