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51322424311 = 67991772963
BaseRepresentation
bin101111110011000011…
…100000101111110111
311220110202012021202001
4233303003200233313
51320102020034221
635324401400131
73464550260134
oct576303405767
9156422167661
1051322424311
111a847197004
129b43939047
134abba29712
1426ac20b58b
151505a14391
hexbf30e0bf7

51322424311 has 8 divisors (see below), whose sum is σ = 52141059584. Its totient is φ = 50505337080.

The previous prime is 51322424291. The next prime is 51322424323. The reversal of 51322424311 is 11342422315.

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 51322424311 - 29 = 51322423799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51322424311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51322424371) 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, 320085 + ... + 452878.

It is an arithmetic number, because the mean of its divisors is an integer number (6517632448).

Almost surely, 251322424311 is an apocalyptic number.

51322424311 is a deficient number, since it is larger than the sum of its proper divisors (818635273).

51322424311 is an equidigital number, since it uses as much as digits as its factorization.

51322424311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774021.

The product of its digits is 5760, while the sum is 28.

Adding to 51322424311 its reverse (11342422315), we get a palindrome (62664846626).

The spelling of 51322424311 in words is "fifty-one billion, three hundred twenty-two million, four hundred twenty-four thousand, three hundred eleven".

Divisors: 1 67 991 66397 772963 51788521 766006333 51322424311