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105503086 = 21319415209
BaseRepresentation
bin1100100100111…
…01100101101110
321100112010000201
412102131211232
5204002044321
614245144114
72420522113
oct622354556
9240463021
10105503086
1154610037
122b3bb03a
1318b1c580
141002490a
1593e0291
hex649d96e

105503086 has 32 divisors (see below), whose sum is σ = 183808800. Its totient is φ = 44997120.

The previous prime is 105503063. The next prime is 105503087. The reversal of 105503086 is 680305501.

It is a super-2 number, since 2×1055030862 = 22261802311046792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105503087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17650 + ... + 22858.

It is an arithmetic number, because the mean of its divisors is an integer number (5744025).

Almost surely, 2105503086 is an apocalyptic number.

105503086 is a deficient number, since it is larger than the sum of its proper divisors (78305714).

105503086 is a wasteful number, since it uses less digits than its factorization.

105503086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 105503086 is about 10271.4695151181. The cubic root of 105503086 is about 472.5216600281.

Adding to 105503086 its reverse (680305501), we get a palindrome (785808587).

The spelling of 105503086 in words is "one hundred five million, five hundred three thousand, eighty-six".

Divisors: 1 2 13 19 26 38 41 82 247 494 533 779 1066 1558 5209 10127 10418 20254 67717 98971 135434 197942 213569 427138 1286623 2573246 2776397 4057811 5552794 8115622 52751543 105503086