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105080500 = 2253724289
BaseRepresentation
bin1100100001101…
…10011010110100
321022201122100101
412100312122310
5203400034000
614232123444
72414112100
oct620663264
9238648311
10105080500
1154351598
122b236584
1318a02115
14dd54900
159359e6a
hex64366b4

105080500 has 72 divisors (see below), whose sum is σ = 267026760. Its totient is φ = 36019200.

The previous prime is 105080473. The next prime is 105080513. The reversal of 105080500 is 5080501.

It can be written as a sum of positive squares in 4 ways, for example, as 345744 + 104734756 = 588^2 + 10234^2 .

It is a super-2 number, since 2×1050805002 = 22083822960500000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22356 + ... + 26644.

It is an arithmetic number, because the mean of its divisors is an integer number (3708705).

Almost surely, 2105080500 is an apocalyptic number.

105080500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105080500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133513380).

105080500 is an abundant number, since it is smaller than the sum of its proper divisors (161946260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105080500 is a wasteful number, since it uses less digits than its factorization.

105080500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322 (or 4303 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 105080500 is about 10250.8780111754. The cubic root of 105080500 is about 471.8899305248.

Subtracting from 105080500 its reverse (5080501), we obtain a palindrome (99999999).

The spelling of 105080500 in words is "one hundred five million, eighty thousand, five hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 49 50 70 98 100 125 140 175 196 245 250 350 490 500 700 875 980 1225 1750 2450 3500 4289 4900 6125 8578 12250 17156 21445 24500 30023 42890 60046 85780 107225 120092 150115 210161 214450 300230 420322 428900 536125 600460 750575 840644 1050805 1072250 1501150 2101610 2144500 3002300 3752875 4203220 5254025 7505750 10508050 15011500 21016100 26270125 52540250 105080500