Search a number
-
+
3168168157 = 721119929537
BaseRepresentation
bin1011110011010110…
…0110100011011101
322011210110121200101
42330311212203131
522442022340112
61242212501101
7141336661600
oct27465464335
98153417611
103168168157
1113863916a0
1274501a791
133b64a4b1b
14220aa0337
15138211757
hexbcd668dd

3168168157 has 24 divisors (see below), whose sum is σ = 4040798400. Its totient is φ = 2456213760.

The previous prime is 3168168139. The next prime is 3168168169. The reversal of 3168168157 is 7518618613.

It is not a de Polignac number, because 3168168157 - 211 = 3168166109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3168168187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92493 + ... + 122029.

It is an arithmetic number, because the mean of its divisors is an integer number (168366600).

Almost surely, 23168168157 is an apocalyptic number.

It is an amenable number.

3168168157 is a deficient number, since it is larger than the sum of its proper divisors (872630243).

3168168157 is a wasteful number, since it uses less digits than its factorization.

3168168157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29761 (or 29754 counting only the distinct ones).

The product of its digits is 241920, while the sum is 46.

The square root of 3168168157 is about 56286.4828977615. The cubic root of 3168168157 is about 1468.7100777994.

The spelling of 3168168157 in words is "three billion, one hundred sixty-eight million, one hundred sixty-eight thousand, one hundred fifty-seven".

Divisors: 1 7 11 49 77 199 539 1393 2189 9751 15323 29537 107261 206759 324907 1447313 2274349 5877863 15920443 41145041 64656493 288015287 452595451 3168168157