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10047009 = 372411667
BaseRepresentation
bin100110010100…
…111000100001
3200220102220110
4212110320201
510033001014
6555201533
7151253400
oct46247041
920812813
1010047009
115742515
1234462a9
13210a09b
141497637
15d36d59
hex994e21

10047009 has 24 divisors (see below), whose sum is σ = 15972768. Its totient is φ = 5597760.

The previous prime is 10046999. The next prime is 10047031. The reversal of 10047009 is 90074001.

It is not a de Polignac number, because 10047009 - 28 = 10046753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (10047109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5194 + ... + 6860.

It is an arithmetic number, because the mean of its divisors is an integer number (665532).

Almost surely, 210047009 is an apocalyptic number.

It is an amenable number.

10047009 is a deficient number, since it is larger than the sum of its proper divisors (5925759).

10047009 is a wasteful number, since it uses less digits than its factorization.

10047009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 10047009 is about 3169.7017209826. The cubic root of 10047009 is about 215.7805341183.

The spelling of 10047009 in words is "ten million, forty-seven thousand, nine".

Divisors: 1 3 7 21 41 49 123 147 287 861 1667 2009 5001 6027 11669 35007 68347 81683 205041 245049 478429 1435287 3349003 10047009