Search a number
-
+
131134689 = 3276134123
BaseRepresentation
bin1111101000011…
…11010011100001
3100010202022222100
413310033103201
5232032302224
621002401013
73151424610
oct764172341
9303668870
10131134689
1168027484
1237b00169
13212250ba
14135b7877
15b7a4ac9
hex7d0f4e1

131134689 has 24 divisors (see below), whose sum is σ = 220031552. Its totient is φ = 73703520.

The previous prime is 131134643. The next prime is 131134691. The reversal of 131134689 is 986431131.

It is not a de Polignac number, because 131134689 - 215 = 131101921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131134609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13219 + ... + 20904.

Almost surely, 2131134689 is an apocalyptic number.

It is an amenable number.

131134689 is a deficient number, since it is larger than the sum of its proper divisors (88896863).

131134689 is a wasteful number, since it uses less digits than its factorization.

131134689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34197 (or 34194 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 131134689 is about 11451.4055469187. The cubic root of 131134689 is about 508.0493072710.

The spelling of 131134689 in words is "one hundred thirty-one million, one hundred thirty-four thousand, six hundred eighty-nine".

Divisors: 1 3 7 9 21 61 63 183 427 549 1281 3843 34123 102369 238861 307107 716583 2081503 2149749 6244509 14570521 18733527 43711563 131134689