Search a number
-
+
105448423 = 1910915087
BaseRepresentation
bin1100100100100…
…00001111100111
321100102100001011
412102100033213
5203443322143
614244043051
72420203543
oct622201747
9240370034
10105448423
1154582a63
122b393487
1318b00722
141000ca23
1593cde9d
hex64903e7

105448423 has 8 divisors (see below), whose sum is σ = 111121920. Its totient is φ = 99787320.

The previous prime is 105448411. The next prime is 105448439. The reversal of 105448423 is 324844501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105448423 is a prime.

It is a super-2 number, since 2×1054484232 = 22238739826373858, 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 (105448463) 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, 18186 + ... + 23272.

It is an arithmetic number, because the mean of its divisors is an integer number (13890240).

Almost surely, 2105448423 is an apocalyptic number.

105448423 is a deficient number, since it is larger than the sum of its proper divisors (5673497).

105448423 is a wasteful number, since it uses less digits than its factorization.

105448423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6197.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 105448423 is about 10268.8082560733. The cubic root of 105448423 is about 472.4400386757.

The spelling of 105448423 in words is "one hundred five million, four hundred forty-eight thousand, four hundred twenty-three".

Divisors: 1 19 1091 5087 20729 96653 5549917 105448423