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105415045 = 5171319467
BaseRepresentation
bin1100100100010…
…00000110000101
321100100122020221
412102020012011
5203441240140
614243224341
72420004331
oct622100605
9240318227
10105415045
115455a97a
122b3780b1
1318abb488
14100007c1
1593c414a
hex6488185

105415045 has 16 divisors (see below), whose sum is σ = 134975808. Its totient is φ = 78757120.

The previous prime is 105415043. The next prime is 105415103. The reversal of 105415045 is 540514501.

It is a happy number.

It is not a de Polignac number, because 105415045 - 21 = 105415043 is a prime.

It is a super-2 number, since 2×1054150452 = 22224663424704050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105415043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6402 + ... + 15868.

It is an arithmetic number, because the mean of its divisors is an integer number (8435988).

Almost surely, 2105415045 is an apocalyptic number.

It is an amenable number.

105415045 is a deficient number, since it is larger than the sum of its proper divisors (29560763).

105415045 is a wasteful number, since it uses less digits than its factorization.

105415045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9620.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 105415045 is about 10267.1829145097. The cubic root of 105415045 is about 472.3901856535.

Adding to 105415045 its reverse (540514501), we get a palindrome (645929546).

The spelling of 105415045 in words is "one hundred five million, four hundred fifteen thousand, forty-five".

Divisors: 1 5 17 85 131 655 2227 9467 11135 47335 160939 804695 1240177 6200885 21083009 105415045