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27310225628 = 2275322781071
BaseRepresentation
bin11001011011110100…
…001111100011011100
32121111022000012121002
4121123310033203130
5421412404210003
620313544525432
71654526042030
oct313364174334
977438005532
1027310225628
1110644a01804
125362180878
13276304bb2a
1414711181c0
15a9c913a88
hex65bd0f8dc

27310225628 has 48 divisors (see below), whose sum is σ = 55896873984. Its totient is φ = 11432815680.

The previous prime is 27310225627. The next prime is 27310225633. The reversal of 27310225628 is 82652201372.

It is a junction number, because it is equal to n+sod(n) for n = 27310225591 and 27310225600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27310225627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296333 + ... + 377403.

It is an arithmetic number, because the mean of its divisors is an integer number (1164518208).

Almost surely, 227310225628 is an apocalyptic number.

27310225628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27310225628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27948436992).

27310225628 is an abundant number, since it is smaller than the sum of its proper divisors (28586648356).

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

27310225628 is a wasteful number, since it uses less digits than its factorization.

27310225628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81362 (or 81360 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 27310225628 in words is "twenty-seven billion, three hundred ten million, two hundred twenty-five thousand, six hundred twenty-eight".

Divisors: 1 2 4 7 14 28 53 106 212 227 371 454 742 908 1484 1589 3178 6356 12031 24062 48124 81071 84217 162142 168434 324284 336868 567497 1134994 2269988 4296763 8593526 17187052 18403117 30077341 36806234 60154682 73612468 120309364 128821819 257643638 515287276 975365201 1950730402 3901460804 6827556407 13655112814 27310225628