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8379145 = 53154059
BaseRepresentation
bin11111111101101100001001
3120202201000201
4133331230021
54121113040
6455332201
7131135665
oct37755411
916681021
108379145
114803415
122981061
131974b98
1411818a5
15b07a9a
hex7fdb09

8379145 has 8 divisors (see below), whose sum is σ = 10379520. Its totient is φ = 6486960.

The previous prime is 8379127. The next prime is 8379149. The reversal of 8379145 is 5419738.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8379145 - 27 = 8379017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8379149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26875 + ... + 27184.

It is an arithmetic number, because the mean of its divisors is an integer number (1297440).

Almost surely, 28379145 is an apocalyptic number.

It is an amenable number.

8379145 is a deficient number, since it is larger than the sum of its proper divisors (2000375).

8379145 is a wasteful number, since it uses less digits than its factorization.

8379145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54095.

The product of its digits is 30240, while the sum is 37.

The square root of 8379145 is about 2894.6752840345. The cubic root of 8379145 is about 203.1109022168.

The spelling of 8379145 in words is "eight million, three hundred seventy-nine thousand, one hundred forty-five".

Divisors: 1 5 31 155 54059 270295 1675829 8379145