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145206304 = 256536949
BaseRepresentation
bin10001010011110…
…10110000100000
3101010020020121021
420221322300200
5244133100204
622224135224
73412142665
oct1051726040
9333206537
10145206304
1174a68711
1240767514
1324110cb9
14153dba6c
15cb34154
hex8a7ac20

145206304 has 24 divisors (see below), whose sum is σ = 286353900. Its totient is φ = 72481536.

The previous prime is 145206301. The next prime is 145206319. The reversal of 145206304 is 403602541.

It can be written as a sum of positive squares in 2 ways, for example, as 144480400 + 725904 = 12020^2 + 852^2 .

It is not an unprimeable number, because it can be changed into a prime (145206301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17422 + ... + 24370.

Almost surely, 2145206304 is an apocalyptic number.

It is an amenable number.

145206304 is a deficient number, since it is larger than the sum of its proper divisors (141147596).

145206304 is an equidigital number, since it uses as much as digits as its factorization.

145206304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7612 (or 7604 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 145206304 is about 12050.1578412899. The cubic root of 145206304 is about 525.6078269219.

Adding to 145206304 its reverse (403602541), we get a palindrome (548808845).

The spelling of 145206304 in words is "one hundred forty-five million, two hundred six thousand, three hundred four".

Divisors: 1 2 4 8 16 32 653 1306 2612 5224 6949 10448 13898 20896 27796 55592 111184 222368 4537697 9075394 18150788 36301576 72603152 145206304