Search a number
-
+
3980380 = 2251723509
BaseRepresentation
bin1111001011110001011100
321111020001111
433023301130
52004333010
6221151404
745555415
oct17136134
97436044
103980380
112279578
1213bb564
13a94971
1475880c
1553958a
hex3cbc5c

3980380 has 48 divisors (see below), whose sum is σ = 9253440. Its totient is φ = 1430528.

The previous prime is 3980377. The next prime is 3980387. The reversal of 3980380 is 830893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3980387) 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 15 ways as a sum of consecutive naturals, for example, 7566 + ... + 8074.

It is an arithmetic number, because the mean of its divisors is an integer number (192780).

Almost surely, 23980380 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 3980380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4626720).

3980380 is an abundant number, since it is smaller than the sum of its proper divisors (5273060).

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

3980380 is a wasteful number, since it uses less digits than its factorization.

3980380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3980380 is about 1995.0889704472. The cubic root of 3980380 is about 158.4801396167.

The spelling of 3980380 in words is "three million, nine hundred eighty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 17 20 23 34 46 68 85 92 115 170 230 340 391 460 509 782 1018 1564 1955 2036 2545 3910 5090 7820 8653 10180 11707 17306 23414 34612 43265 46828 58535 86530 117070 173060 199019 234140 398038 796076 995095 1990190 3980380