Search a number
-
+
105148427 = 891181443
BaseRepresentation
bin1100100010001…
…11000000001011
321022212002112012
412101013000023
5203404222202
614233410135
72414514116
oct621070013
9238762465
10105148427
115439862a
122b26994b
1318a27007
14dd7157d
159370152
hex644700b

105148427 has 4 divisors (see below), whose sum is σ = 106329960. Its totient is φ = 103966896.

The previous prime is 105148423. The next prime is 105148429. The reversal of 105148427 is 724841501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724841501 = 4117679061.

It is a cyclic number.

It is not a de Polignac number, because 105148427 - 22 = 105148423 is a prime.

It is a super-2 number, since 2×1051484272 = 22112383401148658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105148393 and 105148402.

It is not an unprimeable number, because it can be changed into a prime (105148423) 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, 590633 + ... + 590810.

It is an arithmetic number, because the mean of its divisors is an integer number (26582490).

Almost surely, 2105148427 is an apocalyptic number.

105148427 is a deficient number, since it is larger than the sum of its proper divisors (1181533).

105148427 is an equidigital number, since it uses as much as digits as its factorization.

105148427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181532.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 105148427 is about 10254.1907042926. The cubic root of 105148427 is about 471.9915896112.

Adding to 105148427 its reverse (724841501), we get a palindrome (829989928).

The spelling of 105148427 in words is "one hundred five million, one hundred forty-eight thousand, four hundred twenty-seven".

Divisors: 1 89 1181443 105148427