Search a number
-
+
54729200052 = 223211313453589
BaseRepresentation
bin110010111110000111…
…010101000110110100
312020021011122102111100
4302332013111012310
51344041133400202
641050420410100
73645145345002
oct627607250664
9166234572440
1054729200052
112123523004a
12a734846930
135212785657
14291285da72
151654b5941c
hexcbe1d51b4

54729200052 has 36 divisors (see below), whose sum is σ = 139567542660. Its totient is φ = 18081622272.

The previous prime is 54729200039. The next prime is 54729200083. The reversal of 54729200052 is 25000292745.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 312440976 + 54416759076 = 17676^2 + 233274^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6722727 + ... + 6730862.

It is an arithmetic number, because the mean of its divisors is an integer number (3876876185).

Almost surely, 254729200052 is an apocalyptic number.

It is an amenable number.

54729200052 is an abundant number, since it is smaller than the sum of its proper divisors (84838342608).

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

54729200052 is a wasteful number, since it uses less digits than its factorization.

54729200052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13453712 (or 13453707 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

Adding to 54729200052 its reverse (25000292745), we get a palindrome (79729492797).

The spelling of 54729200052 in words is "fifty-four billion, seven hundred twenty-nine million, two hundred thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 113 226 339 452 678 1017 1356 2034 4068 13453589 26907178 40360767 53814356 80721534 121082301 161443068 242164602 484329204 1520255557 3040511114 4560766671 6081022228 9121533342 13682300013 18243066684 27364600026 54729200052