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18080965741 = 53341150297
BaseRepresentation
bin10000110101101101…
…011010010001101101
31201200002112020010211
4100311231122101231
5244012211400431
612150053502421
71210030446556
oct206555322155
951602466124
1018080965741
1177392631a3
123607341a11
131921c3b3c7
14c374a532d
1570c54d2b1
hex435b5a46d

18080965741 has 4 divisors (see below), whose sum is σ = 18422116092. Its totient is φ = 17739815392.

The previous prime is 18080965711. The next prime is 18080965751. The reversal of 18080965741 is 14756908081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14581770025 + 3499195716 = 120755^2 + 59154^2 .

It is a cyclic number.

It is not a de Polignac number, because 18080965741 - 227 = 17946748013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18080965711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170575096 + ... + 170575201.

It is an arithmetic number, because the mean of its divisors is an integer number (4605529023).

Almost surely, 218080965741 is an apocalyptic number.

It is an amenable number.

18080965741 is a deficient number, since it is larger than the sum of its proper divisors (341150351).

18080965741 is an equidigital number, since it uses as much as digits as its factorization.

18080965741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341150350.

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 18080965741 in words is "eighteen billion, eighty million, nine hundred sixty-five thousand, seven hundred forty-one".

Divisors: 1 53 341150297 18080965741