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145479425 = 5271324919
BaseRepresentation
bin10001010101111…
…01011100000001
3101010202010020212
420222331130001
5244220320200
622234043505
73414361160
oct1052753401
9333663225
10145479425
1175134933
1240879595
13241a8400
141546d3d7
15cb8a035
hex8abd701

145479425 has 36 divisors (see below), whose sum is σ = 223289280. Its totient is φ = 92064960.

The previous prime is 145479407. The next prime is 145479431. The reversal of 145479425 is 524974541.

It is not a de Polignac number, because 145479425 - 212 = 145475329 is a prime.

It is a Curzon 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 35 ways as a sum of consecutive naturals, for example, 27116 + ... + 32034.

It is an arithmetic number, because the mean of its divisors is an integer number (6202480).

Almost surely, 2145479425 is an apocalyptic number.

It is an amenable number.

145479425 is a deficient number, since it is larger than the sum of its proper divisors (77809855).

145479425 is a wasteful number, since it uses less digits than its factorization.

145479425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962 (or 4944 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The square root of 145479425 is about 12061.4851904730. The cubic root of 145479425 is about 525.9371620829.

The spelling of 145479425 in words is "one hundred forty-five million, four hundred seventy-nine thousand, four hundred twenty-five".

Divisors: 1 5 7 13 25 35 65 91 169 175 325 455 845 1183 2275 4225 4919 5915 24595 29575 34433 63947 122975 172165 319735 447629 831311 860825 1598675 2238145 4156555 5819177 11190725 20782775 29095885 145479425