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1312714489 = 2389641287
BaseRepresentation
bin100111000111110…
…0110111011111001
310101111002210202011
41032033212323321
510142023330424
6334132005521
744346613642
oct11617467371
93344083664
101312714489
11613aa1909
123077608a1
1317bc6a248
14c64b06c9
157a3a2694
hex4e3e6ef9

1312714489 has 8 divisors (see below), whose sum is σ = 1385182080. Its totient is φ = 1241529696.

The previous prime is 1312714477. The next prime is 1312714519. The reversal of 1312714489 is 9844172131.

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

It is not a de Polignac number, because 1312714489 - 29 = 1312713977 is a prime.

It is a super-2 number, since 2×13127144892 = 3446438659261062242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312714439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318597 + ... + 322690.

It is an arithmetic number, because the mean of its divisors is an integer number (173147760).

Almost surely, 21312714489 is an apocalyptic number.

It is an amenable number.

1312714489 is a deficient number, since it is larger than the sum of its proper divisors (72467591).

1312714489 is an equidigital number, since it uses as much as digits as its factorization.

1312714489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641399.

The product of its digits is 48384, while the sum is 40.

The square root of 1312714489 is about 36231.4019739783. The cubic root of 1312714489 is about 1094.9394235444.

The spelling of 1312714489 in words is "one billion, three hundred twelve million, seven hundred fourteen thousand, four hundred eighty-nine".

Divisors: 1 23 89 2047 641287 14749601 57074543 1312714489