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105244057 = 211498787
BaseRepresentation
bin1100100010111…
…10010110011001
321100000221201001
412101132112121
5203420302212
614235425001
72415362662
oct621362631
9240027631
10105244057
1154453466
122b2b5161
1318a5b6b9
14dd98369
15938d657
hex645e599

105244057 has 4 divisors (see below), whose sum is σ = 105743056. Its totient is φ = 104745060.

The previous prime is 105244043. The next prime is 105244123. The reversal of 105244057 is 750442501.

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.

It is a cyclic number.

It is not a de Polignac number, because 105244057 - 223 = 96855449 is a prime.

It is a super-2 number, since 2×1052440572 = 22152623067638498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105244157) 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, 249183 + ... + 249604.

It is an arithmetic number, because the mean of its divisors is an integer number (26435764).

Almost surely, 2105244057 is an apocalyptic number.

It is an amenable number.

105244057 is a deficient number, since it is larger than the sum of its proper divisors (498999).

105244057 is an equidigital number, since it uses as much as digits as its factorization.

105244057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498998.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 105244057 is about 10258.8526161555. The cubic root of 105244057 is about 472.1346346393.

Adding to 105244057 its reverse (750442501), we get a palindrome (855686558).

The spelling of 105244057 in words is "one hundred five million, two hundred forty-four thousand, fifty-seven".

Divisors: 1 211 498787 105244057