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18134741143 = 173759348619
BaseRepresentation
bin10000111000111010…
…100011000010010111
31201210211201022010101
4100320322203002113
5244114443204033
612155254234531
71211252520301
oct207072430227
951724638111
1018134741143
117766652482
123621355a47
13193011907c
14c406a2971
1571212197d
hex438ea3097

18134741143 has 16 divisors (see below), whose sum is σ = 19754111520. Its totient is φ = 16578349056.

The previous prime is 18134741117. The next prime is 18134741153. The reversal of 18134741143 is 34114743181.

It is not a de Polignac number, because 18134741143 - 25 = 18134741111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18134741113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348688 + ... + 397306.

It is an arithmetic number, because the mean of its divisors is an integer number (1234631970).

Almost surely, 218134741143 is an apocalyptic number.

18134741143 is a deficient number, since it is larger than the sum of its proper divisors (1619370377).

18134741143 is a wasteful number, since it uses less digits than its factorization.

18134741143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49266.

The product of its digits is 32256, while the sum is 37.

The spelling of 18134741143 in words is "eighteen billion, one hundred thirty-four million, seven hundred forty-one thousand, one hundred forty-three".

Divisors: 1 17 37 593 629 10081 21941 48619 372997 826523 1798903 28831067 30581351 490128139 1066749479 18134741143