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105745771 = 265939769
BaseRepresentation
bin1100100110110…
…00110101101011
321100222102221001
412103120311223
5204032331041
614254255431
72422552465
oct623306553
9240872831
10105745771
11547663aa
122b4b7577
1318ba5b81
1410089135
15943c131
hex64d8d6b

105745771 has 4 divisors (see below), whose sum is σ = 105788200. Its totient is φ = 105703344.

The previous prime is 105745733. The next prime is 105745781. The reversal of 105745771 is 177547501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105745771 is a prime.

It is a super-2 number, since 2×1057457712 = 22364336168768882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105745771.

It is not an unprimeable number, because it can be changed into a prime (105745711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17226 + ... + 22543.

It is an arithmetic number, because the mean of its divisors is an integer number (26447050).

Almost surely, 2105745771 is an apocalyptic number.

105745771 is a deficient number, since it is larger than the sum of its proper divisors (42429).

105745771 is an equidigital number, since it uses as much as digits as its factorization.

105745771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42428.

The product of its (nonzero) digits is 34300, while the sum is 37.

The square root of 105745771 is about 10283.2762775295. The cubic root of 105745771 is about 472.8836908426.

The spelling of 105745771 in words is "one hundred five million, seven hundred forty-five thousand, seven hundred seventy-one".

Divisors: 1 2659 39769 105745771