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387548485 = 5241321617
BaseRepresentation
bin10111000110011…
…000010101000101
31000000020111120121
4113012120111011
51243203022420
6102242301541
712414051652
oct2706302505
91000214517
10387548485
11189840a05
12a99578b1
13623a1c3c
1439682c29
15240542aa
hex17198545

387548485 has 8 divisors (see below), whose sum is σ = 466989336. Its totient is φ = 308751360.

The previous prime is 387548479. The next prime is 387548527. The reversal of 387548485 is 584845783.

It can be written as a sum of positive squares in 4 ways, for example, as 70459236 + 317089249 = 8394^2 + 17807^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 387548485 - 211 = 387546437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159604 + ... + 162013.

It is an arithmetic number, because the mean of its divisors is an integer number (58373667).

Almost surely, 2387548485 is an apocalyptic number.

It is an amenable number.

387548485 is a deficient number, since it is larger than the sum of its proper divisors (79440851).

387548485 is a wasteful number, since it uses less digits than its factorization.

387548485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321863.

The product of its digits is 4300800, while the sum is 52.

The square root of 387548485 is about 19686.2511667407. The cubic root of 387548485 is about 729.0802735122.

The spelling of 387548485 in words is "three hundred eighty-seven million, five hundred forty-eight thousand, four hundred eighty-five".

Divisors: 1 5 241 1205 321617 1608085 77509697 387548485