Search a number
-
+
51345053005 = 5531065718181
BaseRepresentation
bin101111110100011001…
…110101010101001101
311220112022202221110211
4233310121311111031
51320123313144010
635330530402421
73465243515041
oct576431652515
9156468687424
1051345053005
111a858a42304
129b4b430411
134ac362048c
1426b121c021
1515079d408a
hexbf467554d

51345053005 has 16 divisors (see below), whose sum is σ = 62785936944. Its totient is φ = 40295024640.

The previous prime is 51345053003. The next prime is 51345053017. The reversal of 51345053005 is 50035054315.

It can be written as a sum of positive squares in 8 ways, for example, as 121594729 + 51223458276 = 11027^2 + 226326^2 .

It is not a de Polignac number, because 51345053005 - 21 = 51345053003 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 (51345053003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2815015 + ... + 2833195.

It is an arithmetic number, because the mean of its divisors is an integer number (3924121059).

Almost surely, 251345053005 is an apocalyptic number.

It is an amenable number.

51345053005 is a deficient number, since it is larger than the sum of its proper divisors (11440883939).

51345053005 is a wasteful number, since it uses less digits than its factorization.

51345053005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28896.

The product of its (nonzero) digits is 22500, while the sum is 31.

The spelling of 51345053005 in words is "fifty-one billion, three hundred forty-five million, fifty-three thousand, five".

Divisors: 1 5 53 265 10657 18181 53285 90905 564821 963593 2824105 4817965 193754917 968774585 10269010601 51345053005