Search a number
-
+
54721412745 = 35192575631327
BaseRepresentation
bin110010111101101001…
…100111111010001001
312020020121222210022120
4302331221213322021
51344032140201440
641045541441453
73645022222326
oct627551477211
9166217883276
1054721412745
11212308a135a
12a732110289
135210c89c8c
1429117d3b4d
15165411bdd0
hexcbda67e89

54721412745 has 64 divisors (see below), whose sum is σ = 92755169280. Its totient is φ = 27471495168.

The previous prime is 54721412741. The next prime is 54721412773.

54721412745 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54721412745 - 22 = 54721412741 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 54721412697 and 54721412706.

It is not an unprimeable number, because it can be changed into a prime (54721412741) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41236272 + ... + 41237598.

It is an arithmetic number, because the mean of its divisors is an integer number (1449299520).

Almost surely, 254721412745 is an apocalyptic number.

It is an amenable number.

54721412745 is a deficient number, since it is larger than the sum of its proper divisors (38033756535).

54721412745 is a wasteful number, since it uses less digits than its factorization.

54721412745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174.

The product of its digits is 313600, while the sum is 42.

The spelling of 54721412745 in words is "fifty-four billion, seven hundred twenty-one million, four hundred twelve thousand, seven hundred forty-five".

Divisors: 1 3 5 15 19 57 95 257 285 563 771 1285 1327 1689 2815 3855 3981 4883 6635 8445 10697 14649 19905 24415 25213 32091 53485 73245 75639 126065 144691 160455 341039 378195 434073 723455 747101 1023117 1705195 2170365 2241303 2749129 3735505 5115585 6479741 8247387 11206515 13745645 14194919 19439223 32398705 41236935 42584757 70974595 97196115 192004957 212923785 576014871 960024785 2880074355 3648094183 10944282549 18240470915 54721412745