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1448768077 = 8916278293
BaseRepresentation
bin101011001011010…
…0111001001001101
310201222010001011221
41112112213021031
510431341034302
6355432043341
750621216431
oct12626471115
93658101157
101448768077
11683878999
12345233551
131a11c5223
14da5a89c1
15872c9937
hex565a724d

1448768077 has 4 divisors (see below), whose sum is σ = 1465046460. Its totient is φ = 1432489696.

The previous prime is 1448768063. The next prime is 1448768089. The reversal of 1448768077 is 7708678441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7708678441 = 17453451673.

It can be written as a sum of positive squares in 2 ways, for example, as 192349161 + 1256418916 = 13869^2 + 35446^2 .

It is a cyclic number.

It is not a de Polignac number, because 1448768077 - 223 = 1440379469 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 (1448768017) 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, 8139058 + ... + 8139235.

It is an arithmetic number, because the mean of its divisors is an integer number (366261615).

Almost surely, 21448768077 is an apocalyptic number.

It is an amenable number.

1448768077 is a deficient number, since it is larger than the sum of its proper divisors (16278383).

1448768077 is an equidigital number, since it uses as much as digits as its factorization.

1448768077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16278382.

The product of its (nonzero) digits is 2107392, while the sum is 52.

The square root of 1448768077 is about 38062.6861506121. The cubic root of 1448768077 is about 1131.5305641034.

The spelling of 1448768077 in words is "one billion, four hundred forty-eight million, seven hundred sixty-eight thousand, seventy-seven".

Divisors: 1 89 16278293 1448768077