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540818540 = 22536773681
BaseRepresentation
bin100000001111000…
…011110001101100
31101200122102120022
4200033003301230
52101422143130
6125355341312
716254611303
oct4017036154
91350572508
10540818540
11258306a79
12131151838
1388077392
1451b7d43a
153272c7e5
hex203c3c6c

540818540 has 24 divisors (see below), whose sum is σ = 1138828992. Its totient is φ = 215735040.

The previous prime is 540818513. The next prime is 540818543. The reversal of 540818540 is 45818045.

It is a self number, because there is not a number n which added to its sum of digits gives 540818540.

It is not an unprimeable number, because it can be changed into a prime (540818543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29501 + ... + 44180.

It is an arithmetic number, because the mean of its divisors is an integer number (47451208).

Almost surely, 2540818540 is an apocalyptic number.

It is an amenable number.

540818540 is an abundant number, since it is smaller than the sum of its proper divisors (598010452).

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

540818540 is a wasteful number, since it uses less digits than its factorization.

540818540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74057 (or 74055 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 540818540 is about 23255.5055846997. The cubic root of 540818540 is about 814.7365327003.

The spelling of 540818540 in words is "five hundred forty million, eight hundred eighteen thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 367 734 1468 1835 3670 7340 73681 147362 294724 368405 736810 1473620 27040927 54081854 108163708 135204635 270409270 540818540