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540786852 = 223215021857
BaseRepresentation
bin100000001110111…
…100000010100100
31101200120211002200
4200032330002210
52101420134402
6125354534500
716254420024
oct4016740244
91350524080
10540786852
11258295191
12131137430
1388065b28
1451b71a84
153272321c
hex203bc0a4

540786852 has 18 divisors (see below), whose sum is σ = 1366989078. Its totient is φ = 180262272.

The previous prime is 540786817. The next prime is 540786871. The reversal of 540786852 is 258687045.

It can be written as a sum of positive squares in only one way, i.e., 346853376 + 193933476 = 18624^2 + 13926^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 540786798 and 540786807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7510893 + ... + 7510964.

Almost surely, 2540786852 is an apocalyptic number.

It is an amenable number.

540786852 is an abundant number, since it is smaller than the sum of its proper divisors (826202226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

540786852 is a wasteful number, since it uses less digits than its factorization.

540786852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15021867 (or 15021862 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 540786852 is about 23254.8242736857. The cubic root of 540786852 is about 814.7206198610.

The spelling of 540786852 in words is "five hundred forty million, seven hundred eighty-six thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 15021857 30043714 45065571 60087428 90131142 135196713 180262284 270393426 540786852