Search a number
-
+
51050105005055 = 5131928326211869
BaseRepresentation
bin10111001101110000001110…
…10111111110001111111111
320200202100020120222200002212
423212320013113332033333
523142401103340130210
6300324032224011035
713516151122612112
oct1346700727761777
9220670216880085
1051050105005055
11152a2256446972
125885a28a60a7b
1322640094351b0
14c86ba42b6579
155d7de50ad805
hex2e6e075fe3ff

51050105005055 has 48 divisors (see below), whose sum is σ = 70466313748320. Its totient is φ = 35284110057216.

The previous prime is 51050105005033. The next prime is 51050105005061. The reversal of 51050105005055 is 55050050105015.

It is not a de Polignac number, because 51050105005055 - 244 = 33457918960639 is a prime.

It is a super-2 number, since 2×510501050050552 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11158340 + ... + 15053529.

It is an arithmetic number, because the mean of its divisors is an integer number (1468048203090).

Almost surely, 251050105005055 is an apocalyptic number.

51050105005055 is a deficient number, since it is larger than the sum of its proper divisors (19416208743265).

51050105005055 is a wasteful number, since it uses less digits than its factorization.

51050105005055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26212008 (or 26211989 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 32.

The spelling of 51050105005055 in words is "fifty-one trillion, fifty billion, one hundred five million, five thousand, fifty-five".

Divisors: 1 5 13 19 65 83 95 247 361 415 1079 1235 1577 1805 4693 5395 7885 20501 23465 29963 102505 149815 389519 1947595 26211869 131059345 340754297 498025511 1703771485 2175585127 2490127555 6474331643 9462484709 10877925635 28282606651 32371658215 41336117413 47312423545 123012301217 141413033255 206680587065 537369526369 615061506085 785386230847 2686847631845 3926931154235 10210021001011 51050105005055