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89919712007 = 715081249257
BaseRepresentation
bin101001110111110100…
…0011110101100000111
322121002122210122200222
41103233220132230013
52433123421241012
6105150351254555
76332202640526
oct1235750365407
9277078718628
1089919712007
1135153373584
1215515b1a45b
1386302c0aa8
1444d039c4bd
1525142bc972
hex14efa1eb07

89919712007 has 8 divisors (see below), whose sum is σ = 91204499232. Its totient is φ = 88635433600.

The previous prime is 89919711989. The next prime is 89919712097. The reversal of 89919712007 is 70021791998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89919712007 - 26 = 89919711943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89919712007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89919712097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236123 + ... + 485379.

It is an arithmetic number, because the mean of its divisors is an integer number (11400562404).

Almost surely, 289919712007 is an apocalyptic number.

89919712007 is a deficient number, since it is larger than the sum of its proper divisors (1284787225).

89919712007 is a wasteful number, since it uses less digits than its factorization.

89919712007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254409.

The product of its (nonzero) digits is 571536, while the sum is 53.

The spelling of 89919712007 in words is "eighty-nine billion, nine hundred nineteen million, seven hundred twelve thousand, seven".

Divisors: 1 71 5081 249257 360751 17697247 1266474817 89919712007