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10487047 = 50320849
BaseRepresentation
bin101000000000…
…010100000111
3201201210112011
4220000110013
510141041142
61012435051
7155065324
oct50002407
921653464
1010487047
115a1308a
123618a87
13223246c
14156db4b
15dc2417
hexa00507

10487047 has 4 divisors (see below), whose sum is σ = 10508400. Its totient is φ = 10465696.

The previous prime is 10487039. The next prime is 10487053. The reversal of 10487047 is 74078401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10487047 - 23 = 10487039 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10487017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9922 + ... + 10927.

It is an arithmetic number, because the mean of its divisors is an integer number (2627100).

Almost surely, 210487047 is an apocalyptic number.

10487047 is a deficient number, since it is larger than the sum of its proper divisors (21353).

10487047 is an equidigital number, since it uses as much as digits as its factorization.

10487047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21352.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 10487047 is about 3238.3710411255. The cubic root of 10487047 is about 218.8858756384.

The spelling of 10487047 in words is "ten million, four hundred eighty-seven thousand, forty-seven".

Divisors: 1 503 20849 10487047