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542763765 = 32512061417
BaseRepresentation
bin100000010110011…
…110101011110101
31101211022020220200
4200112132223311
52102421420030
6125505151113
716310262435
oct4026365365
91354266820
10542763765
112594154a5
1213192b499
13885a88bb
14521282c5
15329b3d60
hex2059eaf5

542763765 has 12 divisors (see below), whose sum is σ = 940790604. Its totient is φ = 289473984.

The previous prime is 542763707. The next prime is 542763769. The reversal of 542763765 is 567367245.

542763765 is a `hidden beast` number, since 5 + 4 + 2 + 7 + 637 + 6 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 322597521 + 220166244 = 17961^2 + 14838^2 .

It is not a de Polignac number, because 542763765 - 210 = 542762741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 12061417 = 542763765 / (5 + 4 + 2 + 7 + 6 + 3 + 7 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 542763765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542763769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6030664 + ... + 6030753.

It is an arithmetic number, because the mean of its divisors is an integer number (78399217).

Almost surely, 2542763765 is an apocalyptic number.

It is an amenable number.

542763765 is a deficient number, since it is larger than the sum of its proper divisors (398026839).

542763765 is a wasteful number, since it uses less digits than its factorization.

542763765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12061428 (or 12061425 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 45.

The square root of 542763765 is about 23297.2909369308. The cubic root of 542763765 is about 815.7121831322.

The spelling of 542763765 in words is "five hundred forty-two million, seven hundred sixty-three thousand, seven hundred sixty-five".

Divisors: 1 3 5 9 15 45 12061417 36184251 60307085 108552753 180921255 542763765