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540920357 = 636185037
BaseRepresentation
bin100000001111011…
…100101000100101
31101200211121020022
4200033130220211
52101433422412
6125401444525
716255514165
oct4017345045
91350747208
10540920357
1125837651a
121311a0745
13880b1823
1451ba85a5
153274ca72
hex203dca25

540920357 has 4 divisors (see below), whose sum is σ = 541011756. Its totient is φ = 540828960.

The previous prime is 540920351. The next prime is 540920363. The reversal of 540920357 is 753029045.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (540920351) and next prime (540920363).

It can be written as a sum of positive squares in 2 ways, for example, as 156525121 + 384395236 = 12511^2 + 19606^2 .

It is a cyclic number.

It is not a de Polignac number, because 540920357 - 26 = 540920293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540920351) 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 3 ways as a sum of consecutive naturals, for example, 36158 + ... + 48879.

It is an arithmetic number, because the mean of its divisors is an integer number (135252939).

Almost surely, 2540920357 is an apocalyptic number.

It is an amenable number.

540920357 is a deficient number, since it is larger than the sum of its proper divisors (91399).

540920357 is an equidigital number, since it uses as much as digits as its factorization.

540920357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91398.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 540920357 is about 23257.6945762042. The cubic root of 540920357 is about 814.7876581815.

The spelling of 540920357 in words is "five hundred forty million, nine hundred twenty thousand, three hundred fifty-seven".

Divisors: 1 6361 85037 540920357