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105147418 = 2973491553
BaseRepresentation
bin1100100010001…
…10110000011010
321022212001010211
412101012300122
5203404204133
614233401334
72414511145
oct621066032
9238761124
10105147418
11543978a2
122b26924a
1318a2670c
14dd7105c
15936ebcd
hex6446c1a

105147418 has 16 divisors (see below), whose sum is σ = 159906600. Its totient is φ = 51849216.

The previous prime is 105147409. The next prime is 105147437. The reversal of 105147418 is 814741501.

It can be written as a sum of positive squares in 4 ways, for example, as 78552769 + 26594649 = 8863^2 + 5157^2 .

It is a super-2 number, since 2×1051474182 = 22111959024133448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105147418.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 66930 + ... + 68482.

Almost surely, 2105147418 is an apocalyptic number.

105147418 is a deficient number, since it is larger than the sum of its proper divisors (54759182).

105147418 is a wasteful number, since it uses less digits than its factorization.

105147418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 105147418 is about 10254.1415047775. The cubic root of 105147418 is about 471.9900798691.

Adding to 105147418 its reverse (814741501), we get a palindrome (919888919).

The spelling of 105147418 in words is "one hundred five million, one hundred forty-seven thousand, four hundred eighteen".

Divisors: 1 2 97 194 349 698 1553 3106 33853 67706 150641 301282 541997 1083994 52573709 105147418