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444252250 = 25313136693
BaseRepresentation
bin11010011110101…
…100000001011010
31010221221100112001
4122132230001122
51402212033000
6112025511214
714003040031
oct3236540132
91127840461
10444252250
11208850322
1210494250a
1371066770
1443003718
152900546a
hex1a7ac05a

444252250 has 32 divisors (see below), whose sum is σ = 895619088. Its totient is φ = 164030400.

The previous prime is 444252239. The next prime is 444252253. The reversal of 444252250 is 52252444.

It can be written as a sum of positive squares in 8 ways, for example, as 12321 + 444239929 = 111^2 + 21077^2 .

It is not an unprimeable number, because it can be changed into a prime (444252253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65097 + ... + 71596.

Almost surely, 2444252250 is an apocalyptic number.

444252250 is an abundant number, since it is smaller than the sum of its proper divisors (451366838).

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

444252250 is a wasteful number, since it uses less digits than its factorization.

444252250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136723 (or 136713 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 444252250 is about 21077.2922834030. The cubic root of 444252250 is about 763.0328086495.

The spelling of 444252250 in words is "four hundred forty-four million, two hundred fifty-two thousand, two hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 125 130 250 325 650 1625 3250 136693 273386 683465 1366930 1777009 3417325 3554018 6834650 8885045 17086625 17770090 34173250 44425225 88850450 222126125 444252250