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632304145 = 51174315473
BaseRepresentation
bin100101101100000…
…011001000010001
31122001210101020001
4211230003020101
52243332213040
6142424250001
721445332214
oct4554031021
91561711201
10632304145
112a4a12510
12157910901
13a0cc9585
145dd9577b
153a79e59a
hex25b03211

632304145 has 16 divisors (see below), whose sum is σ = 828911232. Its totient is φ = 459208960.

The previous prime is 632304143. The next prime is 632304157. The reversal of 632304145 is 541403236.

It is not a de Polignac number, because 632304145 - 21 = 632304143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (632304143) 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 15 ways as a sum of consecutive naturals, for example, 33129 + ... + 48601.

It is an arithmetic number, because the mean of its divisors is an integer number (51806952).

Almost surely, 2632304145 is an apocalyptic number.

It is an amenable number.

632304145 is a deficient number, since it is larger than the sum of its proper divisors (196607087).

632304145 is a wasteful number, since it uses less digits than its factorization.

632304145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16232.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 632304145 is about 25145.6585716103. The cubic root of 632304145 is about 858.3057255288.

Subtracting from 632304145 its reverse (541403236), we obtain a palindrome (90900909).

The spelling of 632304145 in words is "six hundred thirty-two million, three hundred four thousand, one hundred forty-five".

Divisors: 1 5 11 55 743 3715 8173 15473 40865 77365 170203 851015 11496439 57482195 126460829 632304145