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28086250341660 = 2235766872024623
BaseRepresentation
bin1100110001011010101101…
…11110011000010100011100
310200110000112002002020101120
412120231112332120110130
512140131120041413120
6135422351214210540
75626110315605160
oct630552676302434
9120400462066346
1028086250341660
118a49348124575
1231973784b3a50
1312896a2c0a804
146d154b80cca0
1533a8c3da3140
hex198b56f9851c

28086250341660 has 48 divisors (see below), whose sum is σ = 89876001094656. Its totient is φ = 6419714363712.

The previous prime is 28086250341559. The next prime is 28086250341661. The reversal of 28086250341660 is 6614305268082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28086250341661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33436011892 + ... + 33436012731.

It is an arithmetic number, because the mean of its divisors is an integer number (1872416689472).

Almost surely, 228086250341660 is an apocalyptic number.

28086250341660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28086250341660 is an abundant number, since it is smaller than the sum of its proper divisors (61789750752996).

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

28086250341660 is a wasteful number, since it uses less digits than its factorization.

28086250341660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66872024642 (or 66872024640 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 28086250341660 in words is "twenty-eight trillion, eighty-six billion, two hundred fifty million, three hundred forty-one thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 66872024623 133744049246 200616073869 267488098492 334360123115 401232147738 468104172361 668720246230 802464295476 936208344722 1003080369345 1337440492460 1404312517083 1872416689444 2006160738690 2340520861805 2808625034166 4012321477380 4681041723610 5617250068332 7021562585415 9362083447220 14043125170830 28086250341660