Search a number
-
+
7989675693 = 3198910914449
BaseRepresentation
bin1110111000011100…
…01100011010101101
3202121210222120121120
413130032030122231
5112330324110233
63400450251153
7401664060066
oct73416143255
922553876546
107989675693
11342aa6666a
12166b886ab9
139a4369a6c
1455b17b56d
1531b65b4b3
hex1dc38c6ad

7989675693 has 32 divisors (see below), whose sum is σ = 11444400000. Its totient is φ = 4943296512.

The previous prime is 7989675689. The next prime is 7989675713. The reversal of 7989675693 is 3965769897.

It is not a de Polignac number, because 7989675693 - 22 = 7989675689 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7989675193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 545733 + ... + 560181.

It is an arithmetic number, because the mean of its divisors is an integer number (357637500).

Almost surely, 27989675693 is an apocalyptic number.

It is an amenable number.

7989675693 is a deficient number, since it is larger than the sum of its proper divisors (3454724307).

7989675693 is a wasteful number, since it uses less digits than its factorization.

7989675693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14669.

The product of its digits is 154314720, while the sum is 69.

The square root of 7989675693 is about 89384.9858365486. The cubic root of 7989675693 is about 1999.1392707090.

The spelling of 7989675693 in words is "seven billion, nine hundred eighty-nine million, six hundred seventy-five thousand, six hundred ninety-three".

Divisors: 1 3 19 57 89 109 267 327 1691 2071 5073 6213 9701 14449 29103 43347 184319 274531 552957 823593 1285961 1574941 3857883 4724823 24433259 29923879 73299777 89771637 140169749 420509247 2663225231 7989675693