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104400012 = 2238700001
BaseRepresentation
bin1100011100100…
…00010010001100
321021110001220010
412032100102030
5203211300022
614205353220
72405246133
oct616202214
9237401803
10104400012
1153a27302
122ab68810
1318824472
14dc1891a
15927350c
hex639048c

104400012 has 12 divisors (see below), whose sum is σ = 243600056. Its totient is φ = 34800000.

The previous prime is 104400011. The next prime is 104400017. The reversal of 104400012 is 210004401.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 8700001 = 104400012 / (1 + 0 + 4 + 4 + 0 + 0 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (104400011) 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, 4349989 + ... + 4350012.

Almost surely, 2104400012 is an apocalyptic number.

104400012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

104400012 is an abundant number, since it is smaller than the sum of its proper divisors (139200044).

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

104400012 is a wasteful number, since it uses less digits than its factorization.

104400012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8700008 (or 8700006 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 104400012 is about 10217.6324067760. The cubic root of 104400012 is about 470.8690906059.

Adding to 104400012 its reverse (210004401), we get a palindrome (314404413).

The spelling of 104400012 in words is "one hundred four million, four hundred thousand, twelve".

Divisors: 1 2 3 4 6 12 8700001 17400002 26100003 34800004 52200006 104400012