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445525230 = 23514850841
BaseRepresentation
bin11010100011100…
…010110011101110
31011001100000201110
4122203202303232
51403023301410
6112113052450
714016621243
oct3243426356
91131300643
10445525230
1120953a777
12105257126
13713c0cc7
14432555ca
15291a7720
hex1a8e2cee

445525230 has 16 divisors (see below), whose sum is σ = 1069260624. Its totient is φ = 118806720.

The previous prime is 445525217. The next prime is 445525247. The reversal of 445525230 is 32525544.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 14850841 = 445525230 / (4 + 4 + 5 + 5 + 2 + 5 + 2 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7425391 + ... + 7425450.

It is an arithmetic number, because the mean of its divisors is an integer number (66828789).

Almost surely, 2445525230 is an apocalyptic number.

445525230 is an abundant number, since it is smaller than the sum of its proper divisors (623735394).

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

445525230 is a wasteful number, since it uses less digits than its factorization.

445525230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14850851.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 445525230 is about 21107.4685834185. The cubic root of 445525230 is about 763.7609229278.

The spelling of 445525230 in words is "four hundred forty-five million, five hundred twenty-five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 14850841 29701682 44552523 74254205 89105046 148508410 222762615 445525230