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448900000 = 2555672
BaseRepresentation
bin11010110000011…
…010101110100000
31011021200111000221
4122300122232200
51404404300000
6112313252424
714060405233
oct3260325640
91137614027
10448900000
1121043523a
12106404114
1372003103
144389341a
152962261a
hex1ac1aba0

448900000 has 108 divisors (see below), whose sum is σ = 1121377446. Its totient is φ = 176880000.

The previous prime is 448899973. The next prime is 448900003. The reversal of 448900000 is 9844.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 3 ways, for example, as 646416 + 448253584 = 804^2 + 21172^2 .

It is a super-2 number, since 2×4489000002 = 403022420000000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (448900003) 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 17 ways as a sum of consecutive naturals, for example, 6699967 + ... + 6700033.

Almost surely, 2448900000 is an apocalyptic number.

448900000 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 448900000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560688723).

448900000 is an abundant number, since it is smaller than the sum of its proper divisors (672477446).

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

448900000 is an frugal number, since it uses more digits than its factorization.

448900000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 448900000 is about 21187.2603231281. The cubic root of 448900000 is about 765.6845226527.

Adding to 448900000 its reverse (9844), we get a palindrome (448909844).

The spelling of 448900000 in words is "four hundred forty-eight million, nine hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 67 80 100 125 134 160 200 250 268 335 400 500 536 625 670 800 1000 1072 1250 1340 1675 2000 2144 2500 2680 3125 3350 4000 4489 5000 5360 6250 6700 8375 8978 10000 10720 12500 13400 16750 17956 20000 22445 25000 26800 33500 35912 41875 44890 50000 53600 67000 71824 83750 89780 100000 112225 134000 143648 167500 179560 209375 224450 268000 335000 359120 418750 448900 561125 670000 718240 837500 897800 1122250 1340000 1675000 1795600 2244500 2805625 3350000 3591200 4489000 5611250 6700000 8978000 11222500 14028125 17956000 22445000 28056250 44890000 56112500 89780000 112225000 224450000 448900000