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51060572405 = 510212114481
BaseRepresentation
bin101111100011011100…
…101000000011110101
311212210111110211110022
4233203130220003311
51314033001304110
635242405134525
73455220463403
oct574334500365
9155714424408
1051060572405
111a7223a8877
129a900ba445
134a796c756b
142685528473
1514dca3d755
hexbe37280f5

51060572405 has 4 divisors (see below), whose sum is σ = 61272686892. Its totient is φ = 40848457920.

The previous prime is 51060572389. The next prime is 51060572413. The reversal of 51060572405 is 50427506015.

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 35674898884 + 15385673521 = 188878^2 + 124039^2 .

It is not a de Polignac number, because 51060572405 - 24 = 51060572389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5106057236 + ... + 5106057245.

It is an arithmetic number, because the mean of its divisors is an integer number (15318171723).

Almost surely, 251060572405 is an apocalyptic number.

It is an amenable number.

51060572405 is a deficient number, since it is larger than the sum of its proper divisors (10212114487).

51060572405 is a wasteful number, since it uses less digits than its factorization.

51060572405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10212114486.

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 51060572405 in words is "fifty-one billion, sixty million, five hundred seventy-two thousand, four hundred five".

Divisors: 1 5 10212114481 51060572405