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27484855688 = 23193119130539
BaseRepresentation
bin11001100110001110…
…011001110110001000
32121221110121100000002
4121212032121312020
5422242110340223
620343143502132
71662046263413
oct314616316610
977843540002
1027484855688
1110724536974
1253b0757948
132790292724
14148a3b4b7a
15aace0ae28
hex666399d88

27484855688 has 64 divisors (see below), whose sum is σ = 56291328000. Its totient is φ = 12532795200.

The previous prime is 27484855681. The next prime is 27484855711. The reversal of 27484855688 is 88655848472.

It is not an unprimeable number, because it can be changed into a prime (27484855681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 884723 + ... + 915261.

It is an arithmetic number, because the mean of its divisors is an integer number (879552000).

Almost surely, 227484855688 is an apocalyptic number.

It is an amenable number.

27484855688 is an abundant number, since it is smaller than the sum of its proper divisors (28806472312).

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

27484855688 is a wasteful number, since it uses less digits than its factorization.

27484855688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30786 (or 30782 counting only the distinct ones).

The product of its digits is 137625600, while the sum is 65.

The spelling of 27484855688 in words is "twenty-seven billion, four hundred eighty-four million, eight hundred fifty-five thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 19 31 38 62 76 124 152 191 248 382 589 764 1178 1528 2356 3629 4712 5921 7258 11842 14516 23684 29032 30539 47368 61078 112499 122156 224998 244312 449996 580241 899992 946709 1160482 1893418 2320964 3786836 4641928 5832949 7573672 11665898 17987471 23331796 35974942 46663592 71949884 110826031 143899768 180821419 221652062 361642838 443304124 723285676 886608248 1446571352 3435606961 6871213922 13742427844 27484855688