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10409045 = 52081809
BaseRepresentation
bin100111101101…
…010001010101
3201120211112012
4213231101111
510131042140
61011034005
7154322033
oct47552125
921524465
1010409045
11596a519
12359b905
132205aca
14154d553
15da9265
hex9ed455

10409045 has 4 divisors (see below), whose sum is σ = 12490860. Its totient is φ = 8327232.

The previous prime is 10409033. The next prime is 10409051. The reversal of 10409045 is 54090401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54090401 = 97557633.

It can be written as a sum of positive squares in 2 ways, for example, as 3301489 + 7107556 = 1817^2 + 2666^2 .

It is a cyclic number.

It is not a de Polignac number, because 10409045 - 220 = 9360469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10409045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1040900 + ... + 1040909.

It is an arithmetic number, because the mean of its divisors is an integer number (3122715).

Almost surely, 210409045 is an apocalyptic number.

It is an amenable number.

10409045 is a deficient number, since it is larger than the sum of its proper divisors (2081815).

10409045 is an equidigital number, since it uses as much as digits as its factorization.

10409045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081814.

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

The square root of 10409045 is about 3226.3051622560. The cubic root of 10409045 is about 218.3418380749.

Adding to 10409045 its reverse (54090401), we get a palindrome (64499446).

The spelling of 10409045 in words is "ten million, four hundred nine thousand, forty-five".

Divisors: 1 5 2081809 10409045