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448420481 = 676692843
BaseRepresentation
bin11010101110100…
…101101010000001
31011020210010020222
4122232211222001
51404243423411
6112255112425
714053340225
oct3256455201
91136703228
10448420481
11210137a43
12106212715
1371b95a82
14437aa785
152957a4db
hex1aba5a81

448420481 has 4 divisors (see below), whose sum is σ = 455113392. Its totient is φ = 441727572.

The previous prime is 448420477. The next prime is 448420517. The reversal of 448420481 is 184024844.

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 448420481 - 22 = 448420477 is a prime.

It is a super-2 number, since 2×4484204812 = 402161855560542722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448420411) 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, 3346355 + ... + 3346488.

It is an arithmetic number, because the mean of its divisors is an integer number (113778348).

Almost surely, 2448420481 is an apocalyptic number.

It is an amenable number.

448420481 is a deficient number, since it is larger than the sum of its proper divisors (6692911).

448420481 is an equidigital number, since it uses as much as digits as its factorization.

448420481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6692910.

The product of its (nonzero) digits is 32768, while the sum is 35.

The square root of 448420481 is about 21175.9410888867. The cubic root of 448420481 is about 765.4117884959.

The spelling of 448420481 in words is "four hundred forty-eight million, four hundred twenty thousand, four hundred eighty-one".

Divisors: 1 67 6692843 448420481