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105028869 = 31114332221
BaseRepresentation
bin1100100001010…
…01110100000101
321022122000112010
412100221310011
5203341410434
614231044433
72413505421
oct620516405
9238560463
10105028869
1154316820
122b210719
13189b477a
14dd3db81
1593499e9
hex6429d05

105028869 has 16 divisors (see below), whose sum is σ = 152944704. Its totient is φ = 63580800.

The previous prime is 105028849. The next prime is 105028871. The reversal of 105028869 is 968820501.

It is not a de Polignac number, because 105028869 - 28 = 105028613 is a prime.

It is a super-2 number, since 2×1050288692 = 22062126646838322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105028849) 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 15 ways as a sum of consecutive naturals, for example, 46179 + ... + 48399.

It is an arithmetic number, because the mean of its divisors is an integer number (9559044).

Almost surely, 2105028869 is an apocalyptic number.

It is an amenable number.

105028869 is a deficient number, since it is larger than the sum of its proper divisors (47915835).

105028869 is a wasteful number, since it uses less digits than its factorization.

105028869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3668.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 105028869 is about 10248.3593321077. The cubic root of 105028869 is about 471.8126306118.

The spelling of 105028869 in words is "one hundred five million, twenty-eight thousand, eight hundred sixty-nine".

Divisors: 1 3 11 33 1433 2221 4299 6663 15763 24431 47289 73293 3182693 9548079 35009623 105028869