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65454304013 = 79350614859
BaseRepresentation
bin111100111101011000…
…010110101100001101
320020221121211011020222
4330331120112230031
52033022300212023
650022544521125
74505006255450
oct747530265415
9206847734228
1065454304013
112583928042a
12108286201a5
136231761807
14324d013497
151a814e7cc8
hexf3d616b0d

65454304013 has 4 divisors (see below), whose sum is σ = 74804918880. Its totient is φ = 56103689148.

The previous prime is 65454304007. The next prime is 65454304021. The reversal of 65454304013 is 31040345456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-65454304013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65454304063) 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, 4675307423 + ... + 4675307436.

It is an arithmetic number, because the mean of its divisors is an integer number (18701229720).

Almost surely, 265454304013 is an apocalyptic number.

It is an amenable number.

65454304013 is a deficient number, since it is larger than the sum of its proper divisors (9350614867).

65454304013 is an equidigital number, since it uses as much as digits as its factorization.

65454304013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9350614866.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 65454304013 its reverse (31040345456), we get a palindrome (96494649469).

The spelling of 65454304013 in words is "sixty-five billion, four hundred fifty-four million, three hundred four thousand, thirteen".

Divisors: 1 7 9350614859 65454304013