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105682205 = 521136441
BaseRepresentation
bin1100100110010…
…01010100011101
321100212012201202
412103021110131
5204023312310
614253045245
72422166246
oct623112435
9240765652
10105682205
1154722672
122b486825
1318b82c65
141006dccd
1594283a5
hex64c951d

105682205 has 4 divisors (see below), whose sum is σ = 126818652. Its totient is φ = 84545760.

The previous prime is 105682201. The next prime is 105682207. The reversal of 105682205 is 502286501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502286501 = 736880637.

It can be written as a sum of positive squares in 2 ways, for example, as 82391929 + 23290276 = 9077^2 + 4826^2 .

It is not a de Polignac number, because 105682205 - 22 = 105682201 is a prime.

It is a super-2 number, since 2×1056822052 = 22337456907324050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105682201) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10568216 + ... + 10568225.

It is an arithmetic number, because the mean of its divisors is an integer number (31704663).

Almost surely, 2105682205 is an apocalyptic number.

It is an amenable number.

105682205 is a deficient number, since it is larger than the sum of its proper divisors (21136447).

105682205 is an equidigital number, since it uses as much as digits as its factorization.

105682205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21136446.

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

The square root of 105682205 is about 10280.1850664275. The cubic root of 105682205 is about 472.7889184165.

The spelling of 105682205 in words is "one hundred five million, six hundred eighty-two thousand, two hundred five".

Divisors: 1 5 21136441 105682205