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27106286840 = 2351667406513
BaseRepresentation
bin11001001111101010…
…010001110011111000
32120222002021001011122
4121033222101303320
5421003202134330
620241421444412
71646501431223
oct311752216370
976862231148
1027106286840
111054a879556
125305a10708
13272ca15aa9
141451dcc5ba
15a89a7c5e5
hex64fa91cf8

27106286840 has 32 divisors (see below), whose sum is σ = 61025881680. Its totient is φ = 10835983872.

The previous prime is 27106286821. The next prime is 27106286843. The reversal of 27106286840 is 4868260172.

It is a junction number, because it is equal to n+sod(n) for n = 27106286791 and 27106286800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27106286843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136577 + ... + 269936.

Almost surely, 227106286840 is an apocalyptic number.

27106286840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27106286840 is an abundant number, since it is smaller than the sum of its proper divisors (33919594840).

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

27106286840 is a wasteful number, since it uses less digits than its factorization.

27106286840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408191 (or 408187 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 27106286840 in words is "twenty-seven billion, one hundred six million, two hundred eighty-six thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1667 3334 6668 8335 13336 16670 33340 66680 406513 813026 1626052 2032565 3252104 4065130 8130260 16260520 677657171 1355314342 2710628684 3388285855 5421257368 6776571710 13553143420 27106286840