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27730225340 = 2251797745873
BaseRepresentation
bin11001110100110110…
…011010100010111100
32122120120022101212222
4121310312122202330
5423242414202330
620423350544512
72001116012006
oct316466324274
978516271788
1027730225340
111083aa97804
12545a968138
1327cc07367c
1414b0c07376
15ac47280e5
hex674d9a8bc

27730225340 has 24 divisors (see below), whose sum is σ = 58558807440. Its totient is φ = 11030121728.

The previous prime is 27730225309. The next prime is 27730225349. The reversal of 27730225340 is 4352203772.

It is a self number, because there is not a number n which added to its sum of digits gives 27730225340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27730225349) 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, 3869357 + ... + 3876516.

It is an arithmetic number, because the mean of its divisors is an integer number (2439950310).

Almost surely, 227730225340 is an apocalyptic number.

27730225340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27730225340 is an abundant number, since it is smaller than the sum of its proper divisors (30828582100).

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

27730225340 is a wasteful number, since it uses less digits than its factorization.

27730225340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7746061 (or 7746059 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 35.

The spelling of 27730225340 in words is "twenty-seven billion, seven hundred thirty million, two hundred twenty-five thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 179 358 716 895 1790 3580 7745873 15491746 30983492 38729365 77458730 154917460 1386511267 2773022534 5546045068 6932556335 13865112670 27730225340