Base | Representation |
---|---|
bin | 10010000111100000011… |
… | …001011001111010000000 |
3 | 11102000120220112111100110 |
4 | 102013200121121322000 |
5 | 130344240114222030 |
6 | 2351541055351320 |
7 | 155643341660004 |
oct | 22074031317200 |
9 | 4360526474313 |
10 | 1245010304640 |
11 | 440007950173 |
12 | 18135b522540 |
13 | 9053369626b |
14 | 4438a2ba704 |
15 | 225bb4b21b0 |
hex | 121e0659e80 |
1245010304640 has 128 divisors (see below), whose sum is σ = 4022833406400. Its totient is φ = 327454728192.
The previous prime is 1245010304633. The next prime is 1245010304663. The reversal of 1245010304640 is 464030105421.
It is a tau number, because it is divible by the number of its divisors (128).
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 1245010304598 and 1245010304607.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4301230 + ... + 4581549.
Almost surely, 21245010304640 is an apocalyptic number.
1245010304640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1245010304640 is an abundant number, since it is smaller than the sum of its proper divisors (2777823101760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1245010304640 is an equidigital number, since it uses as much as digits as its factorization.
1245010304640 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8882874 (or 8882862 counting only the distinct ones).
The product of its (nonzero) digits is 11520, while the sum is 30.
The spelling of 1245010304640 in words is "one trillion, two hundred forty-five billion, ten million, three hundred four thousand, six hundred forty".
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