Search a number
-
+
6969139289 = 72694997417
BaseRepresentation
bin1100111110110010…
…01010000001011001
3122222200122221211222
412133121022001121
5103233044424124
63111312501425
7334462464230
oct63731120131
918880587758
106969139289
112a56996552
121425b4a875
13870abc278
144a1805b17
152abc7025e
hex19f64a059

6969139289 has 16 divisors (see below), whose sum is σ = 8011440000. Its totient is φ = 5938614144.

The previous prime is 6969139267. The next prime is 6969139297. The reversal of 6969139289 is 9829319696.

It is a cyclic number.

It is not a de Polignac number, because 6969139289 - 216 = 6969073753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6969136289) 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, 935909 + ... + 943325.

It is an arithmetic number, because the mean of its divisors is an integer number (500715000).

Almost surely, 26969139289 is an apocalyptic number.

It is an amenable number.

6969139289 is a deficient number, since it is larger than the sum of its proper divisors (1042300711).

6969139289 is a wasteful number, since it uses less digits than its factorization.

6969139289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8192.

The product of its digits is 11337408, while the sum is 62.

The square root of 6969139289 is about 83481.3709099222. The cubic root of 6969139289 is about 1910.1158787731.

The spelling of 6969139289 in words is "six billion, nine hundred sixty-nine million, one hundred thirty-nine thousand, two hundred eighty-nine".

Divisors: 1 7 269 499 1883 3493 7417 51919 134231 939617 1995173 3701083 13966211 25907581 995591327 6969139289