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105680935 = 521136187
BaseRepresentation
bin1100100110010…
…01000000100111
321100212010222201
412103021000213
5204023242220
614253035331
72422162453
oct623110047
9240763881
10105680935
1154721718
122b485b47
1318b824c9
141006d663
159427d0a
hex64c9027

105680935 has 4 divisors (see below), whose sum is σ = 126817128. Its totient is φ = 84544744.

The previous prime is 105680933. The next prime is 105680941. The reversal of 105680935 is 539086501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 539086501 = 1134770677.

It is a cyclic number.

It is not a de Polignac number, because 105680935 - 21 = 105680933 is a prime.

It is a super-2 number, since 2×1056809352 = 22336920044948450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105680894 and 105680903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105680933) 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 3 ways as a sum of consecutive naturals, for example, 10568089 + ... + 10568098.

It is an arithmetic number, because the mean of its divisors is an integer number (31704282).

Almost surely, 2105680935 is an apocalyptic number.

105680935 is a deficient number, since it is larger than the sum of its proper divisors (21136193).

105680935 is an equidigital number, since it uses as much as digits as its factorization.

105680935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21136192.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 105680935 is about 10280.1232969260. The cubic root of 105680935 is about 472.7870245489.

The spelling of 105680935 in words is "one hundred five million, six hundred eighty thousand, nine hundred thirty-five".

Divisors: 1 5 21136187 105680935