Search a number
-
+
54578027776 = 28213195421
BaseRepresentation
bin110010110101000110…
…101001110100000000
312012212122012002010011
4302311012221310000
51343233433342101
641023420314304
73641331403336
oct626506516400
9165778162104
1054578027776
1121167968088
12a6b20a2994
1351ba365cbc
1428da74bb56
151646747751
hexcb51a9d00

54578027776 has 18 divisors (see below), whose sum is σ = 108942860642. Its totient is φ = 27289013760.

The previous prime is 54578027773. The next prime is 54578027789. The reversal of 54578027776 is 67772087545.

It can be written as a sum of positive squares in only one way, i.e., 49184594176 + 5393433600 = 221776^2 + 73440^2 .

It is a super-2 number, since 2×545780277762 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54578027776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54578027773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106597455 + ... + 106597966.

Almost surely, 254578027776 is an apocalyptic number.

It is an amenable number.

54578027776 is a deficient number, since it is larger than the sum of its proper divisors (54364832866).

54578027776 is an equidigital number, since it uses as much as digits as its factorization.

54578027776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213195437 (or 213195423 counting only the distinct ones).

The product of its (nonzero) digits is 23049600, while the sum is 58.

The spelling of 54578027776 in words is "fifty-four billion, five hundred seventy-eight million, twenty-seven thousand, seven hundred seventy-six".

Divisors: 1 2 4 8 16 32 64 128 256 213195421 426390842 852781684 1705563368 3411126736 6822253472 13644506944 27289013888 54578027776