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9800000 = 265572
BaseRepresentation
bin100101011000…
…100101000000
3200102220001222
4211120211000
510002100000
6550014212
7146204300
oct45304500
920386058
109800000
115593981
123347368
132051822
141431600
15cd8a85
hex958940

9800000 has 126 divisors (see below), whose sum is σ = 28275534. Its totient is φ = 3360000.

The previous prime is 9799997. The next prime is 9800003. The reversal of 9800000 is 89.

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 is an interprime number because it is at equal distance from previous prime (9799997) and next prime (9800003).

It can be written as a sum of positive squares in 3 ways, for example, as 4528384 + 5271616 = 2128^2 + 2296^2 .

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9800003) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1399997 + ... + 1400003.

It is an arithmetic number, because the mean of its divisors is an integer number (224409).

Almost surely, 29800000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14137767).

9800000 is an abundant number, since it is smaller than the sum of its proper divisors (18475534).

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

9800000 is an frugal number, since it uses more digits than its factorization.

9800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 9800000 is about 3130.4951684997. The cubic root of 9800000 is about 213.9974961130.

Adding to 9800000 its reverse (89), we get a palindrome (9800089).

The spelling of 9800000 in words is "nine million, eight hundred thousand".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 49 50 56 64 70 80 98 100 112 125 140 160 175 196 200 224 245 250 280 320 350 392 400 448 490 500 560 625 700 784 800 875 980 1000 1120 1225 1250 1400 1568 1600 1750 1960 2000 2240 2450 2500 2800 3125 3136 3500 3920 4000 4375 4900 5000 5600 6125 6250 7000 7840 8000 8750 9800 10000 11200 12250 12500 14000 15680 17500 19600 20000 21875 24500 25000 28000 30625 35000 39200 40000 43750 49000 50000 56000 61250 70000 78400 87500 98000 100000 122500 140000 153125 175000 196000 200000 245000 280000 306250 350000 392000 490000 612500 700000 980000 1225000 1400000 1960000 2450000 4900000 9800000