Base | Representation |
---|---|
bin | 100101000110111… |
… | …0011011011000000 |
3 | 10012202221021122210 |
4 | 1022031303123000 |
5 | 10022223214410 |
6 | 323315302120 |
7 | 42566310564 |
oct | 11215633300 |
9 | 3182837583 |
10 | 1245132480 |
11 | 589932509 |
12 | 2a8baa940 |
13 | 16ac671a7 |
14 | bb51b6a4 |
15 | 744a3220 |
hex | 4a3736c0 |
1245132480 has 56 divisors (see below), whose sum is σ = 3953298672. Its totient is φ = 332035072.
The previous prime is 1245132433. The next prime is 1245132481. The reversal of 1245132480 is 842315421.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is not an unprimeable number, because it can be changed into a prime (1245132481) 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, 647547 + ... + 649466.
Almost surely, 21245132480 is an apocalyptic number.
1245132480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1245132480 is an abundant number, since it is smaller than the sum of its proper divisors (2708166192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1245132480 is a wasteful number, since it uses less digits than its factorization.
1245132480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1297033 (or 1297023 counting only the distinct ones).
The product of its (nonzero) digits is 7680, while the sum is 30.
The square root of 1245132480 is about 35286.4347873230. The cubic root of 1245132480 is about 1075.8172923054.
The spelling of 1245132480 in words is "one billion, two hundred forty-five million, one hundred thirty-two thousand, four hundred eighty".
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