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2430440141 = 6139843281
BaseRepresentation
bin1001000011011101…
…1001001011001101
320021101022011002112
42100313121023031
514434143041031
61041100433405
7114141254213
oct22067311315
96241264075
102430440141
111037a13718
12579b48865
132c96b607c
14190b04cb3
15e358a62b
hex90dd92cd

2430440141 has 4 divisors (see below), whose sum is σ = 2470283484. Its totient is φ = 2390596800.

The previous prime is 2430440137. The next prime is 2430440161. The reversal of 2430440141 is 1410440342.

It is a happy number.

2430440141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1410440342 = 2705220171.

It can be written as a sum of positive squares in 2 ways, for example, as 330876100 + 2099564041 = 18190^2 + 45821^2 .

It is a cyclic number.

It is not a de Polignac number, because 2430440141 - 22 = 2430440137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2430440161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19921580 + ... + 19921701.

It is an arithmetic number, because the mean of its divisors is an integer number (617570871).

Almost surely, 22430440141 is an apocalyptic number.

It is an amenable number.

2430440141 is a deficient number, since it is larger than the sum of its proper divisors (39843343).

2430440141 is an equidigital number, since it uses as much as digits as its factorization.

2430440141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39843342.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2430440141 is about 49299.4943280355. The cubic root of 2430440141 is about 1344.5025898474.

Adding to 2430440141 its reverse (1410440342), we get a palindrome (3840880483).

The spelling of 2430440141 in words is "two billion, four hundred thirty million, four hundred forty thousand, one hundred forty-one".

Divisors: 1 61 39843281 2430440141