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131313453 = 3106341177
BaseRepresentation
bin1111101001110…
…10111100101101
3100011002102012020
413310322330231
5232104012303
621010300353
73153101025
oct764727455
9304072166
10131313453
1168139817
1237b876b9
132128858b
1413622a85
15b7dca53
hex7d3af2d

131313453 has 8 divisors (see below), whose sum is σ = 175253568. Its totient is φ = 87457824.

The previous prime is 131313451. The next prime is 131313461. The reversal of 131313453 is 354313131.

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

It is not a de Polignac number, because 131313453 - 21 = 131313451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131313451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17400 + ... + 23777.

It is an arithmetic number, because the mean of its divisors is an integer number (21906696).

Almost surely, 2131313453 is an apocalyptic number.

It is an amenable number.

131313453 is a deficient number, since it is larger than the sum of its proper divisors (43940115).

131313453 is a wasteful number, since it uses less digits than its factorization.

131313453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42243.

The product of its digits is 1620, while the sum is 24.

The square root of 131313453 is about 11459.2082187209. The cubic root of 131313453 is about 508.2800615918.

Adding to 131313453 its reverse (354313131), we get a palindrome (485626584).

The spelling of 131313453 in words is "one hundred thirty-one million, three hundred thirteen thousand, four hundred fifty-three".

Divisors: 1 3 1063 3189 41177 123531 43771151 131313453