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448013620 = 22522400681
BaseRepresentation
bin11010101101000…
…010010100110100
31011020000110011001
4122231002110310
51404142413440
6112242253044
714050024105
oct3255022464
91136013131
10448013620
1120a98a29a
12106057184
1371a82822
14437023ac
15294e9b9a
hex1ab42534

448013620 has 12 divisors (see below), whose sum is σ = 940828644. Its totient is φ = 179205440.

The previous prime is 448013617. The next prime is 448013623. The reversal of 448013620 is 26310844.

It is an interprime number because it is at equal distance from previous prime (448013617) and next prime (448013623).

It can be written as a sum of positive squares in 2 ways, for example, as 134652816 + 313360804 = 11604^2 + 17702^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448013623) 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, 11200321 + ... + 11200360.

It is an arithmetic number, because the mean of its divisors is an integer number (78402387).

Almost surely, 2448013620 is an apocalyptic number.

It is an amenable number.

448013620 is an abundant number, since it is smaller than the sum of its proper divisors (492815024).

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

448013620 is a wasteful number, since it uses less digits than its factorization.

448013620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22400690 (or 22400688 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 448013620 is about 21166.3322283290. The cubic root of 448013620 is about 765.1802272336.

The spelling of 448013620 in words is "four hundred forty-eight million, thirteen thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 22400681 44801362 89602724 112003405 224006810 448013620