Search a number
-
+
131132413 = 433049591
BaseRepresentation
bin1111101000011…
…10101111111101
3100010202012212001
413310032233331
5232032214123
621002342301
73151415146
oct764165775
9303665761
10131132413
11680257a5
1237aba991
1321224059
14135b6acd
15b7a40ad
hex7d0ebfd

131132413 has 4 divisors (see below), whose sum is σ = 134182048. Its totient is φ = 128082780.

The previous prime is 131132411. The next prime is 131132423. The reversal of 131132413 is 314231131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131132413 - 21 = 131132411 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 (131132411) 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 3 ways as a sum of consecutive naturals, for example, 1524753 + ... + 1524838.

It is an arithmetic number, because the mean of its divisors is an integer number (33545512).

Almost surely, 2131132413 is an apocalyptic number.

It is an amenable number.

131132413 is a deficient number, since it is larger than the sum of its proper divisors (3049635).

131132413 is an equidigital number, since it uses as much as digits as its factorization.

131132413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049634.

The product of its digits is 216, while the sum is 19.

The square root of 131132413 is about 11451.3061700402. The cubic root of 131132413 is about 508.0463679854.

Adding to 131132413 its reverse (314231131), we get a palindrome (445363544).

The spelling of 131132413 in words is "one hundred thirty-one million, one hundred thirty-two thousand, four hundred thirteen".

Divisors: 1 43 3049591 131132413