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8011485439 = 47170457137
BaseRepresentation
bin1110111011000010…
…11001000011111111
3202200100000121221221
413131201121003333
5112401420013224
63402545534211
7402350334256
oct73541310377
922610017857
108011485439
113441302651
121677044367
139a8a34b39
1456001779d
1531d5186e4
hex1dd8590ff

8011485439 has 4 divisors (see below), whose sum is σ = 8181942624. Its totient is φ = 7841028256.

The previous prime is 8011485437. The next prime is 8011485457. The reversal of 8011485439 is 9345841108.

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

It is a cyclic number.

It is not a de Polignac number, because 8011485439 - 21 = 8011485437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8011485395 and 8011485404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8011485431) 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, 85228522 + ... + 85228615.

It is an arithmetic number, because the mean of its divisors is an integer number (2045485656).

Almost surely, 28011485439 is an apocalyptic number.

8011485439 is a deficient number, since it is larger than the sum of its proper divisors (170457185).

8011485439 is a wasteful number, since it uses less digits than its factorization.

8011485439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170457184.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 8011485439 is about 89506.9016277516. The cubic root of 8011485439 is about 2000.9566622424.

The spelling of 8011485439 in words is "eight billion, eleven million, four hundred eighty-five thousand, four hundred thirty-nine".

Divisors: 1 47 170457137 8011485439