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540605412 = 223215016817
BaseRepresentation
bin100000001110001…
…111101111100100
31101200020121012200
4200032033233210
52101343333122
6125351014500
716253033034
oct4016175744
91350217180
10540605412
11258180936
1213106a430
1388001379
1451b258c4
15326d95ac
hex2038fbe4

540605412 has 18 divisors (see below), whose sum is σ = 1366530438. Its totient is φ = 180201792.

The previous prime is 540605407. The next prime is 540605413. The reversal of 540605412 is 214506045.

540605412 is a `hidden beast` number, since 5 + 40 + 605 + 4 + 12 = 666.

540605412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 513294336 + 27311076 = 22656^2 + 5226^2 .

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

It is a super-2 number, since 2×5406054122 = 584508422967379488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (540605413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7508373 + ... + 7508444.

Almost surely, 2540605412 is an apocalyptic number.

It is an amenable number.

540605412 is an abundant number, since it is smaller than the sum of its proper divisors (825925026).

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

540605412 is a wasteful number, since it uses less digits than its factorization.

540605412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15016827 (or 15016822 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 540605412 is about 23250.9228203958. The cubic root of 540605412 is about 814.6294937276.

The spelling of 540605412 in words is "five hundred forty million, six hundred five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 15016817 30033634 45050451 60067268 90100902 135151353 180201804 270302706 540605412