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3042021440 = 2659506317
BaseRepresentation
bin1011010101010001…
…1001000001000000
321212000002200220202
42311110121001000
522212224141230
61221505024332
7135245520113
oct26524310100
97760080822
103042021440
111321161807
1270a9250a8
133963081b3
1420c02457a
1512c0e4a45
hexb5519040

3042021440 has 28 divisors (see below), whose sum is σ = 7243814316. Its totient is φ = 1216808448.

The previous prime is 3042021403. The next prime is 3042021461. The reversal of 3042021440 is 441202403.

It can be written as a sum of positive squares in 2 ways, for example, as 1257127936 + 1784893504 = 35456^2 + 42248^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4752839 + ... + 4753478.

Almost surely, 23042021440 is an apocalyptic number.

It is an amenable number.

3042021440 is an abundant number, since it is smaller than the sum of its proper divisors (4201792876).

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

3042021440 is an equidigital number, since it uses as much as digits as its factorization.

3042021440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9506334 (or 9506324 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 3042021440 is about 55154.5232959184. The cubic root of 3042021440 is about 1448.9523054002.

Adding to 3042021440 its reverse (441202403), we get a palindrome (3483223843).

The spelling of 3042021440 in words is "three billion, forty-two million, twenty-one thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 9506317 19012634 38025268 47531585 76050536 95063170 152101072 190126340 304202144 380252680 608404288 760505360 1521010720 3042021440