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871320489 = 31322341551
BaseRepresentation
bin110011111011110…
…100101110101001
32020201112200000020
4303323310232221
53241024223424
6222243231053
730410046654
oct6373645651
92221480006
10871320489
11407923a86
12203978489
1310b694770
1483a1289b
1551764079
hex33ef4ba9

871320489 has 8 divisors (see below), whose sum is σ = 1251126912. Its totient is φ = 536197200.

The previous prime is 871320473. The next prime is 871320517. The reversal of 871320489 is 984023178.

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

It is not a de Polignac number, because 871320489 - 24 = 871320473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 871320489.

It is not an unprimeable number, because it can be changed into a prime (871320409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11170737 + ... + 11170814.

It is an arithmetic number, because the mean of its divisors is an integer number (156390864).

Almost surely, 2871320489 is an apocalyptic number.

It is an amenable number.

871320489 is a deficient number, since it is larger than the sum of its proper divisors (379806423).

871320489 is a wasteful number, since it uses less digits than its factorization.

871320489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22341567.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 871320489 is about 29518.1383051167. The cubic root of 871320489 is about 955.1230122146.

The spelling of 871320489 in words is "eight hundred seventy-one million, three hundred twenty thousand, four hundred eighty-nine".

Divisors: 1 3 13 39 22341551 67024653 290440163 871320489