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4487344897 = 7641049271
BaseRepresentation
bin1000010110111011…
…10111001100000001
3102120201201201222011
410023131313030001
533142230014042
62021135212521
7216125542120
oct41335671401
912521651864
104487344897
1119a2a97702
12a52977141
13566895589
14307d73ab7
151b3e3da17
hex10b777301

4487344897 has 4 divisors (see below), whose sum is σ = 5128394176. Its totient is φ = 3846295620.

The previous prime is 4487344889. The next prime is 4487344907. The reversal of 4487344897 is 7984437844.

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 4487344897 - 23 = 4487344889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4487344397) 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, 320524629 + ... + 320524642.

It is an arithmetic number, because the mean of its divisors is an integer number (1282098544).

Almost surely, 24487344897 is an apocalyptic number.

It is an amenable number.

4487344897 is a deficient number, since it is larger than the sum of its proper divisors (641049279).

4487344897 is an equidigital number, since it uses as much as digits as its factorization.

4487344897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641049278.

The product of its digits is 21676032, while the sum is 58.

The square root of 4487344897 is about 66987.6473463578. The cubic root of 4487344897 is about 1649.4145332700.

The spelling of 4487344897 in words is "four billion, four hundred eighty-seven million, three hundred forty-four thousand, eight hundred ninety-seven".

Divisors: 1 7 641049271 4487344897