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51012805301 = 173000753253
BaseRepresentation
bin101111100000100110…
…011010001010110101
311212200011121000022022
4233200212122022311
51313433234232201
635233541242525
73454100455613
oct574046321265
9155604530268
1051012805301
111a6a8442727
129a78103445
134a6c8415c3
14267d0526b3
1514d875541b
hexbe099a2b5

51012805301 has 4 divisors (see below), whose sum is σ = 54013558572. Its totient is φ = 48012052032.

The previous prime is 51012805297. The next prime is 51012805303. The reversal of 51012805301 is 10350821015.

It is a happy number.

51012805301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 36615205201 + 14397600100 = 191351^2 + 119990^2 .

It is a cyclic number.

It is not a de Polignac number, because 51012805301 - 22 = 51012805297 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 (51012805303) 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, 1500376610 + ... + 1500376643.

It is an arithmetic number, because the mean of its divisors is an integer number (13503389643).

Almost surely, 251012805301 is an apocalyptic number.

It is an amenable number.

51012805301 is a deficient number, since it is larger than the sum of its proper divisors (3000753271).

51012805301 is a wasteful number, since it uses less digits than its factorization.

51012805301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000753270.

The product of its (nonzero) digits is 1200, while the sum is 26.

The spelling of 51012805301 in words is "fifty-one billion, twelve million, eight hundred five thousand, three hundred one".

Divisors: 1 17 3000753253 51012805301