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8945413 = 23388931
BaseRepresentation
bin100010000111…
…111100000101
3121211110210121
4202013330011
54242223123
6515421541
7136014631
oct42077405
917743717
108945413
11505a904
122bb48b1
131b12859
14128bdc1
15bba75d
hex887f05

8945413 has 4 divisors (see below), whose sum is σ = 9334368. Its totient is φ = 8556460.

The previous prime is 8945401. The next prime is 8945429. The reversal of 8945413 is 3145498.

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: 3145498 = 21572749.

It is not a de Polignac number, because 8945413 - 25 = 8945381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8945483) 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, 194443 + ... + 194488.

It is an arithmetic number, because the mean of its divisors is an integer number (2333592).

Almost surely, 28945413 is an apocalyptic number.

It is an amenable number.

8945413 is a deficient number, since it is larger than the sum of its proper divisors (388955).

8945413 is a wasteful number, since it uses less digits than its factorization.

8945413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388954.

The product of its digits is 17280, while the sum is 34.

The square root of 8945413 is about 2990.8883295770. Note that the first 3 decimals coincide. The cubic root of 8945413 is about 207.5869901869.

The spelling of 8945413 in words is "eight million, nine hundred forty-five thousand, four hundred thirteen".

Divisors: 1 23 388931 8945413