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105228065 = 547447779
BaseRepresentation
bin1100100010110…
…10011100100001
321100000010202202
412101122130201
5203414244230
614235222545
72415265235
oct621323441
9240003682
10105228065
1154442448
122b2a7a55
1318a54337
14dd925c5
159388a45
hex645a721

105228065 has 8 divisors (see below), whose sum is σ = 128960640. Its totient is φ = 82391152.

The previous prime is 105228049. The next prime is 105228077. The reversal of 105228065 is 560822501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105228065 - 24 = 105228049 is a prime.

It is a super-2 number, since 2×1052280652 = 22145891327288450, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223655 + ... + 224124.

It is an arithmetic number, because the mean of its divisors is an integer number (16120080).

Almost surely, 2105228065 is an apocalyptic number.

It is an amenable number.

105228065 is a deficient number, since it is larger than the sum of its proper divisors (23732575).

105228065 is an equidigital number, since it uses as much as digits as its factorization.

105228065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447831.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 105228065 is about 10258.0731621489. The cubic root of 105228065 is about 472.1107195612.

The spelling of 105228065 in words is "one hundred five million, two hundred twenty-eight thousand, sixty-five".

Divisors: 1 5 47 235 447779 2238895 21045613 105228065