Search a number
-
+
51105000560051 = 12715431709152599
BaseRepresentation
bin10111001111010110011110…
…11001111001010110110011
320200221120221100122210200102
423213223033121321112303
523144301020120410201
6300405151350143015
713523133361255004
oct1347531731712663
9220846840583612
1051105000560051
1115313566569939
1258945a9351a6b
1322692474c4a09
14c896d0c7b1ab
155d955962826b
hex2e7acf6795b3

51105000560051 has 16 divisors (see below), whose sum is σ = 51571279872000. Its totient is φ = 50639758612128.

The previous prime is 51105000560041. The next prime is 51105000560057. The reversal of 51105000560051 is 15006500050115.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-51105000560051 is a prime.

It is a super-2 number, since 2×511050005600512 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51105000559996 and 51105000560023.

It is not an unprimeable number, because it can be changed into a prime (51105000560057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334821050 + ... + 334973648.

It is an arithmetic number, because the mean of its divisors is an integer number (3223204992000).

Almost surely, 251105000560051 is an apocalyptic number.

51105000560051 is a deficient number, since it is larger than the sum of its proper divisors (466279311949).

51105000560051 is a wasteful number, since it uses less digits than its factorization.

51105000560051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155978.

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 51105000560051 in words is "fifty-one trillion, one hundred five billion, five hundred sixty thousand, fifty-one".

Divisors: 1 127 1543 1709 152599 195961 217043 2636987 19380073 235460257 260791691 334897349 29903452639 33120544757 402401579213 51105000560051