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540445210 = 25269200909
BaseRepresentation
bin100000001101101…
…000101000011010
31101122221110110021
4200031220220122
52101323221320
6125343341054
716251465004
oct4015505032
91348843407
10540445210
11258081538
12130bb178a
1387c76486
1451ac3374
15326a6daa
hex20368a1a

540445210 has 16 divisors (see below), whose sum is σ = 976422600. Its totient is φ = 215373376.

The previous prime is 540445193. The next prime is 540445211. The reversal of 540445210 is 12544045.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 191241241 + 349203969 = 13829^2 + 18687^2 .

It is not an unprimeable number, because it can be changed into a prime (540445211) 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 7 ways as a sum of consecutive naturals, for example, 97765 + ... + 103144.

Almost surely, 2540445210 is an apocalyptic number.

540445210 is a deficient number, since it is larger than the sum of its proper divisors (435977390).

540445210 is a wasteful number, since it uses less digits than its factorization.

540445210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201185.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 540445210 is about 23247.4774975695. The cubic root of 540445210 is about 814.5490171825.

Adding to 540445210 its reverse (12544045), we get a palindrome (552989255).

The spelling of 540445210 in words is "five hundred forty million, four hundred forty-five thousand, two hundred ten".

Divisors: 1 2 5 10 269 538 1345 2690 200909 401818 1004545 2009090 54044521 108089042 270222605 540445210