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3968000 = 2105331
BaseRepresentation
bin1111001000110000000000
321110121001222
433020300000
52003434000
6221014212
745504341
oct17106000
97417058
103968000
112270243
1213b4368
13a8c13a
147540c8
15535a85
hex3c8c00

3968000 has 88 divisors (see below), whose sum is σ = 10218624. Its totient is φ = 1536000.

The previous prime is 3967993. The next prime is 3968009. The reversal of 3968000 is 8693.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3968009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127985 + ... + 128015.

Almost surely, 23968000 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 3968000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5109312).

3968000 is an abundant number, since it is smaller than the sum of its proper divisors (6250624).

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

3968000 is an equidigital number, since it uses as much as digits as its factorization.

3968000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 3968000 is about 1991.9839356782. The cubic root of 3968000 is about 158.3156643872.

The spelling of 3968000 in words is "three million, nine hundred sixty-eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 31 32 40 50 62 64 80 100 124 125 128 155 160 200 248 250 256 310 320 400 496 500 512 620 640 775 800 992 1000 1024 1240 1280 1550 1600 1984 2000 2480 2560 3100 3200 3875 3968 4000 4960 5120 6200 6400 7750 7936 8000 9920 12400 12800 15500 15872 16000 19840 24800 25600 31000 31744 32000 39680 49600 62000 64000 79360 99200 124000 128000 158720 198400 248000 396800 496000 793600 992000 1984000 3968000