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65136341 = 89731869
BaseRepresentation
bin1111100001111…
…0011011010101
311112120021021002
43320132123111
5113133330331
610244033045
71420435604
oct370363325
9145507232
1065136341
1133849996
1219992785
1310657b1a
148917a3b
155ab99cb
hex3e1e6d5

65136341 has 4 divisors (see below), whose sum is σ = 65868300. Its totient is φ = 64404384.

The previous prime is 65136319. The next prime is 65136353. The reversal of 65136341 is 14363156.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5522500 + 59613841 = 2350^2 + 7721^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-65136341 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 (65136641) 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, 365846 + ... + 366023.

It is an arithmetic number, because the mean of its divisors is an integer number (16467075).

Almost surely, 265136341 is an apocalyptic number.

It is an amenable number.

65136341 is a deficient number, since it is larger than the sum of its proper divisors (731959).

65136341 is an equidigital number, since it uses as much as digits as its factorization.

65136341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731958.

The product of its digits is 6480, while the sum is 29.

The square root of 65136341 is about 8070.7088288452. The cubic root of 65136341 is about 402.3535024901.

Adding to 65136341 its reverse (14363156), we get a palindrome (79499497).

The spelling of 65136341 in words is "sixty-five million, one hundred thirty-six thousand, three hundred forty-one".

Divisors: 1 89 731869 65136341