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131359589 = 294529641
BaseRepresentation
bin1111101010001…
…10001101100101
3100011011202110222
413311012031211
5232112001324
621011254125
73153352364
oct765061545
9304152428
10131359589
1168170449
1237baa345
13212a358a
14136357db
15b7eb55e
hex7d46365

131359589 has 4 divisors (see below), whose sum is σ = 135889260. Its totient is φ = 126829920.

The previous prime is 131359577. The next prime is 131359603. The reversal of 131359589 is 985953131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 985953131 = 1757997243.

It can be written as a sum of positive squares in 2 ways, for example, as 40538689 + 90820900 = 6367^2 + 9530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131359589 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 (131359519) 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, 2264792 + ... + 2264849.

It is an arithmetic number, because the mean of its divisors is an integer number (33972315).

Almost surely, 2131359589 is an apocalyptic number.

It is an amenable number.

131359589 is a deficient number, since it is larger than the sum of its proper divisors (4529671).

131359589 is an equidigital number, since it uses as much as digits as its factorization.

131359589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4529670.

The product of its digits is 145800, while the sum is 44.

The square root of 131359589 is about 11461.2210955029. The cubic root of 131359589 is about 508.3395814216.

The spelling of 131359589 in words is "one hundred thirty-one million, three hundred fifty-nine thousand, five hundred eighty-nine".

Divisors: 1 29 4529641 131359589