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10128533 = 23440371
BaseRepresentation
bin100110101000…
…110010010101
3201001120201212
4212220302111
510043103113
61001031205
7152043152
oct46506225
921046655
1010128533
115798798
123485505
13213821c
1414b9229
15d510a8
hex9a8c95

10128533 has 4 divisors (see below), whose sum is σ = 10568928. Its totient is φ = 9688140.

The previous prime is 10128509. The next prime is 10128551. The reversal of 10128533 is 33582101.

10128533 is digitally balanced in base 3, because in such base 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.

It is a cyclic number.

It is not a de Polignac number, because 10128533 - 214 = 10112149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 440371 = 10128533 / (1 + 0 + 1 + 2 + 8 + 5 + 3 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10128499 and 10128508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10128563) by changing a digit.

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, 220163 + ... + 220208.

It is an arithmetic number, because the mean of its divisors is an integer number (2642232).

Almost surely, 210128533 is an apocalyptic number.

It is an amenable number.

10128533 is a deficient number, since it is larger than the sum of its proper divisors (440395).

10128533 is an equidigital number, since it uses as much as digits as its factorization.

10128533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440394.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 10128533 is about 3182.5356243096. The cubic root of 10128533 is about 216.3625954235.

It can be divided in two parts, 101285 and 33, that multiplied together give a triangular number (3342405 = T2585).

The spelling of 10128533 in words is "ten million, one hundred twenty-eight thousand, five hundred thirty-three".

Divisors: 1 23 440371 10128533