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147228473 = 7191517331
BaseRepresentation
bin10001100011010…
…00011100111001
3101021000222111102
420301220130321
5300142302343
622335341145
73435264350
oct1061503471
9337028442
10147228473
1176119a27
12413817b5
132466b552
14157a6997
15cdd33b8
hex8c68739

147228473 has 16 divisors (see below), whose sum is σ = 178314240. Its totient is φ = 118746000.

The previous prime is 147228427. The next prime is 147228481. The reversal of 147228473 is 374822741.

It is a cyclic number.

It is not a de Polignac number, because 147228473 - 214 = 147212089 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (147228073) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16418 + ... + 23748.

It is an arithmetic number, because the mean of its divisors is an integer number (11144640).

Almost surely, 2147228473 is an apocalyptic number.

It is an amenable number.

147228473 is a deficient number, since it is larger than the sum of its proper divisors (31085767).

147228473 is a wasteful number, since it uses less digits than its factorization.

147228473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7508.

The product of its digits is 75264, while the sum is 38.

The square root of 147228473 is about 12133.7740625083. The cubic root of 147228473 is about 528.0364904858.

The spelling of 147228473 in words is "one hundred forty-seven million, two hundred twenty-eight thousand, four hundred seventy-three".

Divisors: 1 7 19 133 151 1057 2869 7331 20083 51317 139289 975023 1106981 7748867 21032639 147228473