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8164145 = 511148439
BaseRepresentation
bin11111001001001100110001
3120100210002202
4133021030301
54042223040
6450552545
7126252113
oct37111461
916323082
108164145
114676930
122898755
1318cb072
1411273b3
15ab4015
hex7c9331

8164145 has 8 divisors (see below), whose sum is σ = 10687680. Its totient is φ = 5937520.

The previous prime is 8164141. The next prime is 8164147. The reversal of 8164145 is 5414618.

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

It is not a de Polignac number, because 8164145 - 22 = 8164141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8164141) 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, 74165 + ... + 74274.

It is an arithmetic number, because the mean of its divisors is an integer number (1335960).

Almost surely, 28164145 is an apocalyptic number.

It is an amenable number.

8164145 is a deficient number, since it is larger than the sum of its proper divisors (2523535).

8164145 is a wasteful number, since it uses less digits than its factorization.

8164145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148455.

The product of its digits is 3840, while the sum is 29.

The square root of 8164145 is about 2857.2967994242. The cubic root of 8164145 is about 201.3586247947.

The spelling of 8164145 in words is "eight million, one hundred sixty-four thousand, one hundred forty-five".

Divisors: 1 5 11 55 148439 742195 1632829 8164145