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1448051663 = 1579223259
BaseRepresentation
bin101011001001111…
…1000001111001111
310201220202122110002
41112103320033033
510431200123123
6355404434515
750612143652
oct12623701717
93656678402
101448051663
11683429713
12344b48a3b
131a1004106
14da45d899
15871d7528
hex564f83cf

1448051663 has 4 divisors (see below), whose sum is σ = 1457275080. Its totient is φ = 1438828248.

The previous prime is 1448051659. The next prime is 1448051669. The reversal of 1448051663 is 3661508441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3661508441 = 23915320119.

It is a cyclic number.

It is not a de Polignac number, because 1448051663 - 22 = 1448051659 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 (1448051669) 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, 4611473 + ... + 4611786.

It is an arithmetic number, because the mean of its divisors is an integer number (364318770).

Almost surely, 21448051663 is an apocalyptic number.

1448051663 is a deficient number, since it is larger than the sum of its proper divisors (9223417).

1448051663 is an equidigital number, since it uses as much as digits as its factorization.

1448051663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9223416.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 1448051663 is about 38053.2740115749. The cubic root of 1448051663 is about 1131.3440198690.

The spelling of 1448051663 in words is "one billion, four hundred forty-eight million, fifty-one thousand, six hundred sixty-three".

Divisors: 1 157 9223259 1448051663