Search a number
-
+
54680428646870 = 2513232355283223
BaseRepresentation
bin11000110111011010001111…
…00001101001000111010110
321011121101202002101121112012
430123231013201221013112
524131341004213144440
6312143501522424222
714342346665460215
oct1433550741510726
9234541662347465
1054680428646870
1116471926501044
126171524b02072
13246845b042400
14d7079286707c
1564c56b8c7e65
hex31bb478691d6

54680428646870 has 24 divisors (see below), whose sum is σ = 106578302939856. Its totient is φ = 20189696730528.

The previous prime is 54680428646861. The next prime is 54680428646873. The reversal of 54680428646870 is 7864682408645.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54680428646870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54680428646873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16177639922 + ... + 16177643301.

It is an arithmetic number, because the mean of its divisors is an integer number (4440762622494).

Almost surely, 254680428646870 is an apocalyptic number.

54680428646870 is a deficient number, since it is larger than the sum of its proper divisors (51897874292986).

54680428646870 is a wasteful number, since it uses less digits than its factorization.

54680428646870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32355283256 (or 32355283243 counting only the distinct ones).

The product of its (nonzero) digits is 495452160, while the sum is 68.

The spelling of 54680428646870 in words is "fifty-four trillion, six hundred eighty billion, four hundred twenty-eight million, six hundred forty-six thousand, eight hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 169 338 845 1690 32355283223 64710566446 161776416115 323552832230 420618681899 841237363798 2103093409495 4206186818990 5468042864687 10936085729374 27340214323435 54680428646870