| Base | Representation |
|---|---|
| bin | 101000001000010111000 |
| 3 | 2110210211201 |
| 4 | 11001002320 |
| 5 | 314040000 |
| 6 | 44103544 |
| 7 | 14114551 |
| oct | 5010270 |
| 9 | 2423751 |
| 10 | 1315000 |
| 11 | 818a85 |
| 12 | 534bb4 |
| 13 | 37070b |
| 14 | 263328 |
| 15 | 1ae96a |
| hex | 1410b8 |
1315000 has 40 divisors (see below), whose sum is σ = 3092760. Its totient is φ = 524000.
The previous prime is 1314997. The next prime is 1315003. The reversal of 1315000 is 5131.
It is an interprime number because it is at equal distance from previous prime (1314997) and next prime (1315003).
It is a tau number, because it is divible by the number of its divisors (40).
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1315003) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4869 + ... + 5131.
It is an arithmetic number, because the mean of its divisors is an integer number (77319).
21315000 is an apocalyptic number.
1315000 is a gapful number since it is divisible by the number (10) 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 1315000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1546380).
1315000 is an abundant number, since it is smaller than the sum of its proper divisors (1777760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1315000 is an equidigital number, since it uses as much as digits as its factorization.
1315000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 289 (or 270 counting only the distinct ones).
The product of its (nonzero) digits is 15, while the sum is 10.
The square root of 1315000 is about 1146.7344941180. The cubic root of 1315000 is about 109.5574505834.
It can be divided in two parts, 13 and 15000, that multiplied together give a triangular number (195000 = T624).
The spelling of 1315000 in words is "one million, three hundred fifteen thousand".
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