Search a number
-
+
131316133 = 1371142271
BaseRepresentation
bin1111101001110…
…11100110100101
3100011002112212111
413310323212211
5232104104013
621010321021
73153111604
oct764734645
9304075774
10131316133
1168140833
1237b89171
1321289870
1413623a3b
15b7dd73d
hex7d3b9a5

131316133 has 8 divisors (see below), whose sum is σ = 143410176. Its totient is φ = 119506800.

The previous prime is 131316121. The next prime is 131316137. The reversal of 131316133 is 331613131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131316133 - 213 = 131307941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131316137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70213 + ... + 72058.

It is an arithmetic number, because the mean of its divisors is an integer number (17926272).

Almost surely, 2131316133 is an apocalyptic number.

131316133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

131316133 is a deficient number, since it is larger than the sum of its proper divisors (12094043).

131316133 is a wasteful number, since it uses less digits than its factorization.

131316133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142355.

The product of its digits is 486, while the sum is 22.

The square root of 131316133 is about 11459.3251546503. The cubic root of 131316133 is about 508.2835194281.

Adding to 131316133 its reverse (331613131), we get a palindrome (462929264).

The spelling of 131316133 in words is "one hundred thirty-one million, three hundred sixteen thousand, one hundred thirty-three".

Divisors: 1 13 71 923 142271 1849523 10101241 131316133