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10500069 = 33500023
BaseRepresentation
bin101000000011…
…011111100101
3201202110101110
4220003133211
510142000234
61013015233
7155151306
oct50033745
921673343
1010500069
115a21948
123624519
132238378
1415747ad
15dc61e9
hexa037e5

10500069 has 4 divisors (see below), whose sum is σ = 14000096. Its totient is φ = 7000044.

The previous prime is 10500037. The next prime is 10500089. The reversal of 10500069 is 96000501.

10500069 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96000501 = 332000167.

It is not a de Polignac number, because 10500069 - 25 = 10500037 is a prime.

It is a super-2 number, since 2×105000692 = 220502898009522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10500089) 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, 1750009 + ... + 1750014.

It is an arithmetic number, because the mean of its divisors is an integer number (3500024).

Almost surely, 210500069 is an apocalyptic number.

It is an amenable number.

10500069 is a deficient number, since it is larger than the sum of its proper divisors (3500027).

10500069 is an equidigital number, since it uses as much as digits as its factorization.

10500069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500026.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 10500069 is about 3240.3809961176. The cubic root of 10500069 is about 218.9764366550.

The spelling of 10500069 in words is "ten million, five hundred thousand, sixty-nine".

Divisors: 1 3 3500023 10500069