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540510233 = 1928447907
BaseRepresentation
bin100000001101111…
…000100000011001
31101200001202122112
4200031320200121
52101332311413
6125345002105
716252155404
oct4015704031
91350052575
10540510233
1125811637a
12131023335
1387c99c53
1451adcd3b
15326bb2a8
hex20378819

540510233 has 4 divisors (see below), whose sum is σ = 568958160. Its totient is φ = 512062308.

The previous prime is 540510227. The next prime is 540510247. The reversal of 540510233 is 332015045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 332015045 = 566403009.

It is a cyclic number.

It is not a de Polignac number, because 540510233 - 218 = 540248089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 540510199 and 540510208.

It is not an unprimeable number, because it can be changed into a prime (540510133) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14223935 + ... + 14223972.

It is an arithmetic number, because the mean of its divisors is an integer number (142239540).

Almost surely, 2540510233 is an apocalyptic number.

It is an amenable number.

540510233 is a deficient number, since it is larger than the sum of its proper divisors (28447927).

540510233 is a wasteful number, since it uses less digits than its factorization.

540510233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28447926.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 540510233 is about 23248.8759513229. The cubic root of 540510233 is about 814.5816830265.

Adding to 540510233 its reverse (332015045), we get a palindrome (872525278).

The spelling of 540510233 in words is "five hundred forty million, five hundred ten thousand, two hundred thirty-three".

Divisors: 1 19 28447907 540510233