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3980080 = 245134389
BaseRepresentation
bin1111001011101100110000
321111012122101
433023230300
52004330310
6221150144
745554506
oct17135460
97435571
103980080
112279325
1213bb354
13a947a0
14758676
1553943a
hex3cbb30

3980080 has 80 divisors (see below), whose sum is σ = 10311840. Its totient is φ = 1419264.

The previous prime is 3980071. The next prime is 3980087. The reversal of 3980080 is 800893.

3980080 = T776 + T777 + ... + T788.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3980087) 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, 44676 + ... + 44764.

It is an arithmetic number, because the mean of its divisors is an integer number (128898).

Almost surely, 23980080 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 3980080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5155920).

3980080 is an abundant number, since it is smaller than the sum of its proper divisors (6331760).

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

3980080 is a wasteful number, since it uses less digits than its factorization.

3980080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 3980080 is about 1995.0137844135. The cubic root of 3980080 is about 158.4761579837.

The spelling of 3980080 in words is "three million, nine hundred eighty thousand, eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 43 52 65 80 86 89 104 130 172 178 208 215 260 344 356 430 445 520 559 688 712 860 890 1040 1118 1157 1424 1720 1780 2236 2314 2795 3440 3560 3827 4472 4628 5590 5785 7120 7654 8944 9256 11180 11570 15308 18512 19135 22360 23140 30616 38270 44720 46280 49751 61232 76540 92560 99502 153080 199004 248755 306160 398008 497510 796016 995020 1990040 3980080