Search a number
-
+
105302005 = 521060401
BaseRepresentation
bin1100100011011…
…00011111110101
321100010220012021
412101230133311
5203424131010
614240553141
72416023634
oct621543765
9240126167
10105302005
1154492a56
122b3227b1
1318a7bba3
14ddb151b
1593a08da
hex646c7f5

105302005 has 4 divisors (see below), whose sum is σ = 126362412. Its totient is φ = 84241600.

The previous prime is 105301967. The next prime is 105302039. The reversal of 105302005 is 500203501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500203501 = 771457643.

It can be written as a sum of positive squares in 2 ways, for example, as 32421636 + 72880369 = 5694^2 + 8537^2 .

It is not a de Polignac number, because 105302005 - 225 = 71747573 is a prime.

It is a super-2 number, since 2×1053020052 = 22177024514040050, 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 105302005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10530196 + ... + 10530205.

It is an arithmetic number, because the mean of its divisors is an integer number (31590603).

Almost surely, 2105302005 is an apocalyptic number.

It is an amenable number.

105302005 is a deficient number, since it is larger than the sum of its proper divisors (21060407).

105302005 is an equidigital number, since it uses as much as digits as its factorization.

105302005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21060406.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 105302005 is about 10261.6765199455. The cubic root of 105302005 is about 472.2212721139.

Adding to 105302005 its reverse (500203501), we get a palindrome (605505506).

The spelling of 105302005 in words is "one hundred five million, three hundred two thousand, five".

Divisors: 1 5 21060401 105302005