Search a number
-
+
448628480 = 285463757
BaseRepresentation
bin11010101111011…
…000011100000000
31011021011200120122
4122233120130000
51404322102410
6112303355412
714055164516
oct3257303400
91137150518
10448628480
1121026a243
121062b2b68
1371c39651
14438224b6
15295bbe55
hex1abd8700

448628480 has 72 divisors (see below), whose sum is σ = 1078348992. Its totient is φ = 178827264.

The previous prime is 448628471. The next prime is 448628483. The reversal of 448628480 is 84826844.

It is a happy number.

It is a super-2 number, since 2×4486284802 = 402535026134220800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448628483) 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 7 ways as a sum of consecutive naturals, for example, 592262 + ... + 593018.

Almost surely, 2448628480 is an apocalyptic number.

448628480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 448628480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539174496).

448628480 is an abundant number, since it is smaller than the sum of its proper divisors (629720512).

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

448628480 is an equidigital number, since it uses as much as digits as its factorization.

448628480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 44.

The square root of 448628480 is about 21180.8517298054. The cubic root of 448628480 is about 765.5301151440.

The spelling of 448628480 in words is "four hundred forty-eight million, six hundred twenty-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 463 640 757 926 1280 1514 1852 2315 3028 3704 3785 4630 6056 7408 7570 9260 12112 14816 15140 18520 24224 29632 30280 37040 48448 59264 60560 74080 96896 118528 121120 148160 193792 242240 296320 350491 484480 592640 700982 968960 1401964 1752455 2803928 3504910 5607856 7009820 11215712 14019640 22431424 28039280 44862848 56078560 89725696 112157120 224314240 448628480