Search a number
-
+
8309243089 = 7103193211283
BaseRepresentation
bin1111011110100010…
…01111110011010001
3210110002022021200001
413233101033303101
5114004131234324
63452303530001
7412624254340
oct75721176321
923402267601
108309243089
113584395354
12173a8b9901
13a256290b4
1458b7a5b57
15339732e44
hex1ef44fcd1

8309243089 has 32 divisors (see below), whose sum is σ = 9718052864. Its totient is φ = 6958586880.

The previous prime is 8309243087. The next prime is 8309243101. The reversal of 8309243089 is 9803429038.

It is not a de Polignac number, because 8309243089 - 21 = 8309243087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8309243087) 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, 29361142 + ... + 29361424.

It is an arithmetic number, because the mean of its divisors is an integer number (303689152).

Almost surely, 28309243089 is an apocalyptic number.

It is an amenable number.

8309243089 is a deficient number, since it is larger than the sum of its proper divisors (1408809775).

8309243089 is a wasteful number, since it uses less digits than its factorization.

8309243089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 8309243089 is about 91155.0497175006. The cubic root of 8309243089 is about 2025.4451565362.

The spelling of 8309243089 in words is "eight billion, three hundred nine million, two hundred forty-three thousand, eighty-nine".

Divisors: 1 7 103 193 211 283 721 1351 1477 1981 19879 21733 29149 40723 54619 59713 139153 152131 204043 285061 382333 417991 4194469 5625757 6150439 11524609 29361283 39380299 43053073 80672263 1187034727 8309243089