| Base | Representation |
|---|---|
| bin | 100111000110010… |
| … | …0111000010101000 |
| 3 | 10101102121212120000 |
| 4 | 1032030213002220 |
| 5 | 10141323202423 |
| 6 | 334103103000 |
| 7 | 44340131253 |
| oct | 11614470250 |
| 9 | 3342555500 |
| 10 | 1311928488 |
| 11 | 613605322 |
| 12 | 307441a60 |
| 13 | 17ba53560 |
| 14 | c634809a |
| 15 | 7a299843 |
| hex | 4e3270a8 |
1311928488 has 160 divisors (see below), whose sum is σ = 4190515560. Its totient is φ = 379883520.
The previous prime is 1311928459. The next prime is 1311928517. The reversal of 1311928488 is 8848291131.
1311928488 is a `hidden beast` number, since 131 + 19 + 28 + 488 = 666.
It is an interprime number because it is at equal distance from previous prime (1311928459) and next prime (1311928517).
It can be written as a sum of positive squares in 4 ways, for example, as 982070244 + 329858244 = 31338^2 + 18162^2 .
It is a super-2 number, since 2×13119284882 = 3442312715251932288, which contains 22 as substring.
It is a nude number because it is divisible by every one of its digits.
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 39 ways as a sum of consecutive naturals, for example, 138628 + ... + 147788.
Almost surely, 21311928488 is an apocalyptic number.
1311928488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1311928488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2095257780).
1311928488 is an abundant number, since it is smaller than the sum of its proper divisors (2878587072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1311928488 is a wasteful number, since it uses less digits than its factorization.
1311928488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9209 (or 9196 counting only the distinct ones).
The product of its digits is 110592, while the sum is 45.
The square root of 1311928488 is about 36220.5533916863. The cubic root of 1311928488 is about 1094.7208445832.
The spelling of 1311928488 in words is "one billion, three hundred eleven million, nine hundred twenty-eight thousand, four hundred eighty-eight".
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