Search a number
-
+
54138205175477 = 197557493381013
BaseRepresentation
bin11000100111101000010000…
…11111001111111010110101
321002200120011121021022102212
430103310020133033322311
524044000021011103402
6311050425331543205
714255233123143053
oct1423641037177265
9232616147238385
1054138205175477
111628297a494645
1260a441b45ab05
1324292982b3247
14d52435a491d3
1563d3d3ea6952
hex313d087cfeb5

54138205175477 has 8 divisors (see below), whose sum is σ = 54510707950776. Its totient is φ = 53766689163712.

The previous prime is 54138205175443. The next prime is 54138205175533. The reversal of 54138205175477 is 77457150283145.

It can be written as a sum of positive squares in 4 ways, for example, as 3976809709636 + 50161395465841 = 1994194^2 + 7082471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54138205175477 - 218 = 54138204913333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54138205175377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246580778 + ... + 246800235.

It is an arithmetic number, because the mean of its divisors is an integer number (6813838493847).

Almost surely, 254138205175477 is an apocalyptic number.

It is an amenable number.

54138205175477 is a deficient number, since it is larger than the sum of its proper divisors (372502775299).

54138205175477 is a wasteful number, since it uses less digits than its factorization.

54138205175477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493381767.

The product of its (nonzero) digits is 32928000, while the sum is 59.

The spelling of 54138205175477 in words is "fifty-four trillion, one hundred thirty-eight billion, two hundred five million, one hundred seventy-five thousand, four hundred seventy-seven".

Divisors: 1 197 557 109729 493381013 97196059561 274813224241 54138205175477