Search a number
-
+
54987863268 = 22313227114331
BaseRepresentation
bin110011001101100010…
…000011010011100100
312020221012100212201110
4303031202003103210
51400103343111033
641132220425020
73654436061112
oct631542032344
9166835325643
1054987863268
11213582405a8
12a7a73a8170
13525423c300
142938d52ab2
15166c700363
hexccd8834e4

54987863268 has 36 divisors (see below), whose sum is σ = 138933837168. Its totient is φ = 16919341920.

The previous prime is 54987863261. The next prime is 54987863269. The reversal of 54987863268 is 86236878945.

It is a junction number, because it is equal to n+sod(n) for n = 54987863199 and 54987863208.

It is not an unprimeable number, because it can be changed into a prime (54987863261) 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, 13555138 + ... + 13559193.

Almost surely, 254987863268 is an apocalyptic number.

It is an amenable number.

54987863268 is an abundant number, since it is smaller than the sum of its proper divisors (83945973900).

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

54987863268 is a wasteful number, since it uses less digits than its factorization.

54987863268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27114364 (or 27114349 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 66.

The spelling of 54987863268 in words is "fifty-four billion, nine hundred eighty-seven million, eight hundred sixty-three thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 169 338 507 676 1014 2028 27114331 54228662 81342993 108457324 162685986 325371972 352486303 704972606 1057458909 1409945212 2114917818 4229835636 4582321939 9164643878 13746965817 18329287756 27493931634 54987863268