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145104474 = 2324184079
BaseRepresentation
bin10001010011000…
…01111001011010
3101010001001220210
420221201321122
5244121320344
622222031550
73411240054
oct1051417132
9333031823
10145104474
11749a9159
12407185b6
13240a6848
14153b28d4
15cb13db9
hex8a61e5a

145104474 has 8 divisors (see below), whose sum is σ = 290208960. Its totient is φ = 48368156.

The previous prime is 145104473. The next prime is 145104481. The reversal of 145104474 is 474401541.

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

145104474 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (145104473) 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 3 ways as a sum of consecutive naturals, for example, 12092034 + ... + 12092045.

It is an arithmetic number, because the mean of its divisors is an integer number (36276120).

Almost surely, 2145104474 is an apocalyptic number.

145104474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145104474 is a wasteful number, since it uses less digits than its factorization.

145104474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24184084.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 145104474 is about 12045.9318444029. The cubic root of 145104474 is about 525.4849324382.

The spelling of 145104474 in words is "one hundred forty-five million, one hundred four thousand, four hundred seventy-four".

Divisors: 1 2 3 6 24184079 48368158 72552237 145104474