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105730115 = 521146023
BaseRepresentation
bin1100100110101…
…01000001000011
321100221122110012
412103111001003
5204031330430
614254055135
72422456031
oct623250103
9240848405
10105730115
1154755667
122b4aa4ab
1318b9b9ca
1410083551
159437695
hex64d5043

105730115 has 4 divisors (see below), whose sum is σ = 126876144. Its totient is φ = 84584088.

The previous prime is 105730111. The next prime is 105730129. The reversal of 105730115 is 511037501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105730115 - 22 = 105730111 is a prime.

It is a super-2 number, since 2×1057301152 = 22357714435826450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105730111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10573007 + ... + 10573016.

It is an arithmetic number, because the mean of its divisors is an integer number (31719036).

Almost surely, 2105730115 is an apocalyptic number.

105730115 is a deficient number, since it is larger than the sum of its proper divisors (21146029).

105730115 is an equidigital number, since it uses as much as digits as its factorization.

105730115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21146028.

The product of its (nonzero) digits is 525, while the sum is 23.

The square root of 105730115 is about 10282.5150133613. The cubic root of 105730115 is about 472.8603523759.

Adding to 105730115 its reverse (511037501), we get a palindrome (616767616).

The spelling of 105730115 in words is "one hundred five million, seven hundred thirty thousand, one hundred fifteen".

Divisors: 1 5 21146023 105730115