Search a number
-
+
52678339931 = 78299077777
BaseRepresentation
bin110001000011110111…
…111010110101011011
312000222020120221022002
4301003313322311123
51330341123334211
640111115351215
73543263333660
oct610367726533
9160866527262
1052678339931
1120382605528
12a261a5250b
134c76911559
14279a325a67
151584a9c03b
hexc43dfad5b

52678339931 has 8 divisors (see below), whose sum is σ = 60276445920. Its totient is φ = 45098391168.

The previous prime is 52678339913. The next prime is 52678339999. The reversal of 52678339931 is 13993387625.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 52678339931 - 218 = 52678077787 is a prime.

It is a super-2 number, since 2×526783399312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52678339031) 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, 4533086 + ... + 4544691.

It is an arithmetic number, because the mean of its divisors is an integer number (7534555740).

Almost surely, 252678339931 is an apocalyptic number.

52678339931 is a deficient number, since it is larger than the sum of its proper divisors (7598105989).

52678339931 is an equidigital number, since it uses as much as digits as its factorization.

52678339931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9078613.

The product of its digits is 7348320, while the sum is 56.

The spelling of 52678339931 in words is "fifty-two billion, six hundred seventy-eight million, three hundred thirty-nine thousand, nine hundred thirty-one".

Divisors: 1 7 829 5803 9077777 63544439 7525477133 52678339931