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3030321040 = 24537879013
BaseRepresentation
bin1011010010011111…
…0000011110010000
321211012002020222121
42310213300132100
522201230233130
61220410144024
7135044206135
oct26447603620
97735066877
103030321040
1113155a005a
12706a22014
13393a6c696
1420a65a58c
1512b082d7a
hexb49f0790

3030321040 has 20 divisors (see below), whose sum is σ = 7045496604. Its totient is φ = 1212128384.

The previous prime is 3030321037. The next prime is 3030321059. The reversal of 3030321040 is 401230303.

It can be written as a sum of positive squares in 2 ways, for example, as 351637504 + 2678683536 = 18752^2 + 51756^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 18939427 + ... + 18939586.

Almost surely, 23030321040 is an apocalyptic number.

It is an amenable number.

3030321040 is an abundant number, since it is smaller than the sum of its proper divisors (4015175564).

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

3030321040 is a wasteful number, since it uses less digits than its factorization.

3030321040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37879026 (or 37879020 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 3030321040 is about 55048.3518372712. The cubic root of 3030321040 is about 1447.0922370136.

Adding to 3030321040 its reverse (401230303), we get a palindrome (3431551343).

The spelling of 3030321040 in words is "three billion, thirty million, three hundred twenty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 37879013 75758026 151516052 189395065 303032104 378790130 606064208 757580260 1515160520 3030321040