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131413433 = 3123917737
BaseRepresentation
bin1111101010100…
…11010110111001
3100011021111100012
413311103112321
5232120212213
621012351305
73153665354
oct765232671
9304244305
10131413433
11681a7948
1238015535
13212c1c38
141364b29b
15b80c4a8
hex7d535b9

131413433 has 8 divisors (see below), whose sum is σ = 136227840. Its totient is φ = 126635040.

The previous prime is 131413391. The next prime is 131413439. The reversal of 131413433 is 334314131.

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 131413433 - 216 = 131347897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131413399 and 131413408.

It is not an unprimeable number, because it can be changed into a prime (131413439) 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, 1460 + ... + 16277.

It is an arithmetic number, because the mean of its divisors is an integer number (17028480).

Almost surely, 2131413433 is an apocalyptic number.

It is an amenable number.

131413433 is a deficient number, since it is larger than the sum of its proper divisors (4814407).

131413433 is a wasteful number, since it uses less digits than its factorization.

131413433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18007.

The product of its digits is 1296, while the sum is 23.

The square root of 131413433 is about 11463.5698192143. The cubic root of 131413433 is about 508.4090276841.

Adding to 131413433 its reverse (334314131), we get a palindrome (465727564).

The spelling of 131413433 in words is "one hundred thirty-one million, four hundred thirteen thousand, four hundred thirty-three".

Divisors: 1 31 239 7409 17737 549847 4239143 131413433