Search a number
-
+
105885049 = 432462443
BaseRepresentation
bin1100100111110…
…10110101111001
321101020111222111
412103322311321
5204101310144
614301252321
72424002524
oct623726571
9241214874
10105885049
1154851006
122b5640a1
1318c2439a
14100c3bbb
159468534
hex64fad79

105885049 has 4 divisors (see below), whose sum is σ = 108347536. Its totient is φ = 103422564.

The previous prime is 105885029. The next prime is 105885079. The reversal of 105885049 is 940588501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 940588501 = 5443172807.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105885049 is a prime.

It is a super-2 number, since 2×1058850492 = 22423287203464802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105885019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231179 + ... + 1231264.

It is an arithmetic number, because the mean of its divisors is an integer number (27086884).

Almost surely, 2105885049 is an apocalyptic number.

It is an amenable number.

105885049 is a deficient number, since it is larger than the sum of its proper divisors (2462487).

105885049 is an equidigital number, since it uses as much as digits as its factorization.

105885049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462486.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 105885049 is about 10290.0461126275. The cubic root of 105885049 is about 473.0912118288.

The spelling of 105885049 in words is "one hundred five million, eight hundred eighty-five thousand, forty-nine".

Divisors: 1 43 2462443 105885049