Search a number
-
+
131404411 = 359366029
BaseRepresentation
bin1111101010100…
…01001001111011
3100011021000222001
413311101021323
5232114420121
621012241431
73153630145
oct765211173
9304230861
10131404411
11681a1096
1238010277
13212baab8
1413647c95
15b809991
hex7d5127b

131404411 has 4 divisors (see below), whose sum is σ = 131770800. Its totient is φ = 131038024.

The previous prime is 131404393. The next prime is 131404417. The reversal of 131404411 is 114404131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114404131 = 493123201.

It is a cyclic number.

It is not a de Polignac number, because 131404411 - 25 = 131404379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131404417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182656 + ... + 183373.

It is an arithmetic number, because the mean of its divisors is an integer number (32942700).

Almost surely, 2131404411 is an apocalyptic number.

131404411 is a deficient number, since it is larger than the sum of its proper divisors (366389).

131404411 is an equidigital number, since it uses as much as digits as its factorization.

131404411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366388.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 131404411 is about 11463.1763050212. The cubic root of 131404411 is about 508.3973927213.

Adding to 131404411 its reverse (114404131), we get a palindrome (245808542).

The spelling of 131404411 in words is "one hundred thirty-one million, four hundred four thousand, four hundred eleven".

Divisors: 1 359 366029 131404411