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27930488654 = 297143971591
BaseRepresentation
bin11010000000110010…
…010110111101001110
32200002112010211111202
4122000302112331032
5424200201114104
620455303145502
72006100144035
oct320062267516
980075124452
1027930488654
111093303a582
1254b5a45292
1328316c0783
1414cd65771c
15ad70d551e
hex680c96f4e

27930488654 has 8 divisors (see below), whose sum is σ = 42327648048. Its totient is φ = 13821272640.

The previous prime is 27930488629. The next prime is 27930488687. The reversal of 27930488654 is 45688403972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×279304886542 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27930488654.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 71985602 + ... + 71985989.

It is an arithmetic number, because the mean of its divisors is an integer number (5290956006).

Almost surely, 227930488654 is an apocalyptic number.

27930488654 is a deficient number, since it is larger than the sum of its proper divisors (14397159394).

27930488654 is a wasteful number, since it uses less digits than its factorization.

27930488654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143971690.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 27930488654 in words is "twenty-seven billion, nine hundred thirty million, four hundred eighty-eight thousand, six hundred fifty-four".

Divisors: 1 2 97 194 143971591 287943182 13965244327 27930488654