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52795967309 = 389135722281
BaseRepresentation
bin110001001010111000…
…101000011101001101
312001021102221000201122
4301022320220131031
51331111231423214
640130520450325
73546222213641
oct611270503515
9161242830648
1052795967309
1120432a46738
12a2953199a5
134c950b7557
1427abbc4c21
15159008488e
hexc4ae2874d

52795967309 has 4 divisors (see below), whose sum is σ = 52931689980. Its totient is φ = 52660244640.

The previous prime is 52795967303. The next prime is 52795967311. The reversal of 52795967309 is 90376959725.

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 23288286025 + 29507681284 = 152605^2 + 171778^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52795967309 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 (52795967303) 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 3 ways as a sum of consecutive naturals, for example, 67860752 + ... + 67861529.

It is an arithmetic number, because the mean of its divisors is an integer number (13232922495).

Almost surely, 252795967309 is an apocalyptic number.

It is an amenable number.

52795967309 is a deficient number, since it is larger than the sum of its proper divisors (135722671).

52795967309 is a wasteful number, since it uses less digits than its factorization.

52795967309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135722670.

The product of its (nonzero) digits is 32148900, while the sum is 62.

The spelling of 52795967309 in words is "fifty-two billion, seven hundred ninety-five million, nine hundred sixty-seven thousand, three hundred nine".

Divisors: 1 389 135722281 52795967309