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4400243141 = 7628606163
BaseRepresentation
bin1000001100100011…
…00110000111000101
3102100122211111211012
410012101212013011
533002430240031
62004344252005
7214020310130
oct40621460705
912318744735
104400243141
111958905888
12a29771005
13551819888
142da57d217
151ab485b2b
hex1064661c5

4400243141 has 4 divisors (see below), whose sum is σ = 5028849312. Its totient is φ = 3771636972.

The previous prime is 4400243053. The next prime is 4400243143. The reversal of 4400243141 is 1413420044.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4400243141 - 214 = 4400226757 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 (4400243143) 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 3 ways as a sum of consecutive naturals, for example, 314303075 + ... + 314303088.

It is an arithmetic number, because the mean of its divisors is an integer number (1257212328).

Almost surely, 24400243141 is an apocalyptic number.

It is an amenable number.

4400243141 is a deficient number, since it is larger than the sum of its proper divisors (628606171).

4400243141 is an equidigital number, since it uses as much as digits as its factorization.

4400243141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628606170.

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

The square root of 4400243141 is about 66334.3285260354. The cubic root of 4400243141 is about 1638.6727240685.

Adding to 4400243141 its reverse (1413420044), we get a palindrome (5813663185).

The spelling of 4400243141 in words is "four billion, four hundred million, two hundred forty-three thousand, one hundred forty-one".

Divisors: 1 7 628606163 4400243141