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448090481 = 1931232051
BaseRepresentation
bin11010101101010…
…101000101110001
31011020011100120202
4122231111011301
51404202343411
6112244044545
714050464146
oct3255250561
91136140522
10448090481
1120aa32013
12106093755
1371aab7c7
14437223cd
152951283b
hex1ab55171

448090481 has 4 divisors (see below), whose sum is σ = 448324464. Its totient is φ = 447856500.

The previous prime is 448090463. The next prime is 448090507. The reversal of 448090481 is 184090844.

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 448090481 - 222 = 443896177 is a prime.

It is a super-2 number, since 2×4480904812 = 401570158325622722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448090411) 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, 114095 + ... + 117956.

It is an arithmetic number, because the mean of its divisors is an integer number (112081116).

Almost surely, 2448090481 is an apocalyptic number.

It is an amenable number.

448090481 is a deficient number, since it is larger than the sum of its proper divisors (233983).

448090481 is a wasteful number, since it uses less digits than its factorization.

448090481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233982.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 448090481 is about 21168.1477933238. The cubic root of 448090481 is about 765.2239827147.

The spelling of 448090481 in words is "four hundred forty-eight million, ninety thousand, four hundred eighty-one".

Divisors: 1 1931 232051 448090481