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27394322020 = 2251328104829
BaseRepresentation
bin11001100000110101…
…000010111001100100
32121201011020202011021
4121200311002321210
5422100421301040
620330151220524
71656566616022
oct314065027144
977634222137
1027394322020
111068842065a
125386377744
1327775b4900
14147c369712
15aa4ec624a
hex660d42e64

27394322020 has 36 divisors (see below), whose sum is σ = 62293723380. Its totient is φ = 10114825344.

The previous prime is 27394321979. The next prime is 27394322047. The reversal of 27394322020 is 2022349372.

It can be written as a sum of positive squares in 6 ways, for example, as 11312024164 + 16082297856 = 106358^2 + 126816^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4049035 + ... + 4055794.

It is an arithmetic number, because the mean of its divisors is an integer number (1730381205).

Almost surely, 227394322020 is an apocalyptic number.

27394322020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27394322020 is an abundant number, since it is smaller than the sum of its proper divisors (34899401360).

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

27394322020 is a wasteful number, since it uses less digits than its factorization.

27394322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8104864 (or 8104849 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The spelling of 27394322020 in words is "twenty-seven billion, three hundred ninety-four million, three hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 169 260 338 676 845 1690 3380 8104829 16209658 32419316 40524145 81048290 105362777 162096580 210725554 421451108 526813885 1053627770 1369716101 2107255540 2739432202 5478864404 6848580505 13697161010 27394322020