| Base | Representation |
|---|---|
| bin | 100101010110011… |
| … | …1101100000010000 |
| 3 | 10020100022020201102 |
| 4 | 1022230331200100 |
| 5 | 10031321101430 |
| 6 | 324210323532 |
| 7 | 43025606363 |
| oct | 11254754020 |
| 9 | 3210266642 |
| 10 | 1253300240 |
| 11 | 593501025 |
| 12 | 2ab8895a8 |
| 13 | 16c866a9a |
| 14 | bc6460da |
| 15 | 75068345 |
| hex | 4ab3d810 |
1253300240 has 80 divisors (see below), whose sum is σ = 3046471680. Its totient is φ = 478932480.
The previous prime is 1253300201. The next prime is 1253300263. The reversal of 1253300240 is 420033521.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (80).
It is a super-2 number, since 2×12533002402 = 3141522983168115200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (20).
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 15 ways as a sum of consecutive naturals, for example, 192722 + ... + 199118.
It is an arithmetic number, because the mean of its divisors is an integer number (38080896).
Almost surely, 21253300240 is an apocalyptic number.
1253300240 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 1253300240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1523235840).
1253300240 is an abundant number, since it is smaller than the sum of its proper divisors (1793171440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1253300240 is a wasteful number, since it uses less digits than its factorization.
1253300240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6520 (or 6514 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 20.
The square root of 1253300240 is about 35401.9807355464. The cubic root of 1253300240 is about 1078.1645321246.
Adding to 1253300240 its reverse (420033521), we get a palindrome (1673333761).
The spelling of 1253300240 in words is "one billion, two hundred fifty-three million, three hundred thousand, two hundred forty".
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