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3979328 = 2697641
BaseRepresentation
bin1111001011100001000000
321111011121112
433023201000
52004314303
6221142452
745552353
oct17134100
97434545
103979328
112278801
1213baa28
13a94342
1475829a
155390d8
hex3cb840

3979328 has 28 divisors (see below), whose sum is σ = 7990332. Its totient is φ = 1966080.

The previous prime is 3979289. The next prime is 3979357. The reversal of 3979328 is 8239793.

It can be written as a sum of positive squares in 2 ways, for example, as 2795584 + 1183744 = 1672^2 + 1088^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5888 + ... + 6528.

It is an arithmetic number, because the mean of its divisors is an integer number (285369).

Almost surely, 23979328 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 3979328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3995166).

3979328 is an abundant number, since it is smaller than the sum of its proper divisors (4011004).

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

3979328 is an equidigital number, since it uses as much as digits as its factorization.

3979328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750 (or 740 counting only the distinct ones).

The product of its digits is 81648, while the sum is 41.

The square root of 3979328 is about 1994.8253056346. The cubic root of 3979328 is about 158.4661764777.

The spelling of 3979328 in words is "three million, nine hundred seventy-nine thousand, three hundred twenty-eight".

Divisors: 1 2 4 8 16 32 64 97 194 388 641 776 1282 1552 2564 3104 5128 6208 10256 20512 41024 62177 124354 248708 497416 994832 1989664 3979328