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104745040 = 2451309313
BaseRepresentation
bin1100011111001…
…00100001010000
321022002121011221
412033210201100
5203303320130
614221014424
72411214061
oct617444120
9238077157
10104745040
1154142554
122b0b4414
131891551a
14dca8568
1592e087a
hex63e4850

104745040 has 20 divisors (see below), whose sum is σ = 243532404. Its totient is φ = 41897984.

The previous prime is 104745019. The next prime is 104745077. The reversal of 104745040 is 40547401.

It can be written as a sum of positive squares in 2 ways, for example, as 70358544 + 34386496 = 8388^2 + 5864^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 104744996 and 104745014.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 654577 + ... + 654736.

Almost surely, 2104745040 is an apocalyptic number.

104745040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104745040 is an abundant number, since it is smaller than the sum of its proper divisors (138787364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104745040 is a wasteful number, since it uses less digits than its factorization.

104745040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309326 (or 1309320 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 104745040 is about 10234.5024305044. The cubic root of 104745040 is about 471.3872398939.

The spelling of 104745040 in words is "one hundred four million, seven hundred forty-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1309313 2618626 5237252 6546565 10474504 13093130 20949008 26186260 52372520 104745040