Search a number
-
+
131768065 = 51113184291
BaseRepresentation
bin1111101101010…
…01111100000001
3100011221111210201
413312221330001
5232213034230
621024125201
73160003312
oct766517401
9304844721
10131768065
116841a330
1238166801
13213b7490
1413700609
15b87c5ca
hex7da9f01

131768065 has 16 divisors (see below), whose sum is σ = 185766336. Its totient is φ = 88459200.

The previous prime is 131768041. The next prime is 131768089. The reversal of 131768065 is 560867131.

It is an interprime number because it is at equal distance from previous prime (131768041) and next prime (131768089).

It is not a de Polignac number, because 131768065 - 25 = 131768033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91431 + ... + 92860.

It is an arithmetic number, because the mean of its divisors is an integer number (11610396).

Almost surely, 2131768065 is an apocalyptic number.

It is an amenable number.

131768065 is a deficient number, since it is larger than the sum of its proper divisors (53998271).

131768065 is a wasteful number, since it uses less digits than its factorization.

131768065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184320.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 131768065 is about 11479.0271800358. The cubic root of 131768065 is about 508.8659474091.

The spelling of 131768065 in words is "one hundred thirty-one million, seven hundred sixty-eight thousand, sixty-five".

Divisors: 1 5 11 13 55 65 143 715 184291 921455 2027201 2395783 10136005 11978915 26353613 131768065