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105683785 = 5139152063
BaseRepresentation
bin1100100110010…
…01101101001001
321100212021220021
412103021231021
5204023340120
614253100441
72422203664
oct623115511
9240767807
10105683785
1154723879
122b487721
1318b838ac
14100706db
159428aaa
hex64c9b49

105683785 has 8 divisors (see below), whose sum is σ = 127733760. Its totient is φ = 83938224.

The previous prime is 105683783. The next prime is 105683791. The reversal of 105683785 is 587386501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105683785 - 21 = 105683783 is a prime.

It is a super-2 number, since 2×1056837852 = 22338124823852450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105683783) 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 7 ways as a sum of consecutive naturals, for example, 75337 + ... + 76726.

It is an arithmetic number, because the mean of its divisors is an integer number (15966720).

Almost surely, 2105683785 is an apocalyptic number.

It is an amenable number.

105683785 is a deficient number, since it is larger than the sum of its proper divisors (22049975).

105683785 is a wasteful number, since it uses less digits than its factorization.

105683785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152207.

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 105683785 is about 10280.2619130059. The cubic root of 105683785 is about 472.7912745457.

The spelling of 105683785 in words is "one hundred five million, six hundred eighty-three thousand, seven hundred eighty-five".

Divisors: 1 5 139 695 152063 760315 21136757 105683785