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27726016455 = 325616133699
BaseRepresentation
bin11001110100100110…
…010110111111000111
32122120021101120101100
4121310212112333013
5423240330011310
620423120431143
72001035152134
oct316446267707
978507346340
1027726016455
1110838682595
1254594784b3
1327cb22b9c7
1414b042d58b
15ac4195ec0
hex674996fc7

27726016455 has 12 divisors (see below), whose sum is σ = 48058428600. Its totient is φ = 14787208752.

The previous prime is 27726016429. The next prime is 27726016459. The reversal of 27726016455 is 55461062772.

It is not a de Polignac number, because 27726016455 - 210 = 27726015431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 616133699 = 27726016455 / (2 + 7 + 7 + 2 + 6 + 0 + 1 + 6 + 4 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 27726016455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27726016459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308066805 + ... + 308066894.

It is an arithmetic number, because the mean of its divisors is an integer number (4004869050).

Almost surely, 227726016455 is an apocalyptic number.

27726016455 is a deficient number, since it is larger than the sum of its proper divisors (20332412145).

27726016455 is a wasteful number, since it uses less digits than its factorization.

27726016455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616133710 (or 616133707 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 27726016455 in words is "twenty-seven billion, seven hundred twenty-six million, sixteen thousand, four hundred fifty-five".

Divisors: 1 3 5 9 15 45 616133699 1848401097 3080668495 5545203291 9242005485 27726016455