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671127297 = 31034634691
BaseRepresentation
bin101000000000001…
…001011100000001
31201202211210120120
4220000021130001
52333302033142
6150332330453
722426326231
oct5000113401
91652753516
10671127297
11314919965
12168913a29
13a9070559
14651bdcc1
153ddbc7ec
hex28009701

671127297 has 16 divisors (see below), whose sum is σ = 905668608. Its totient is φ = 442023120.

The previous prime is 671127257. The next prime is 671127313. The reversal of 671127297 is 792721176.

It is not a de Polignac number, because 671127297 - 27 = 671127169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671127217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140722 + ... + 145412.

It is an arithmetic number, because the mean of its divisors is an integer number (56604288).

Almost surely, 2671127297 is an apocalyptic number.

It is an amenable number.

671127297 is a deficient number, since it is larger than the sum of its proper divisors (234541311).

671127297 is a wasteful number, since it uses less digits than its factorization.

671127297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260.

The product of its digits is 74088, while the sum is 42.

The square root of 671127297 is about 25906.1247005414. The cubic root of 671127297 is about 875.5244951210.

The spelling of 671127297 in words is "six hundred seventy-one million, one hundred twenty-seven thousand, two hundred ninety-seven".

Divisors: 1 3 103 309 463 1389 4691 14073 47689 143067 483173 1449519 2171933 6515799 223709099 671127297