Base | Representation |
---|---|
bin | 10001110001001000110… |
… | …110110100110100100100 |
3 | 11022201121002211020011021 |
4 | 101301020312310310210 |
5 | 130001043204344443 |
6 | 2332525542220524 |
7 | 154133226426142 |
oct | 21611066646444 |
9 | 4281532736137 |
10 | 1220993043748 |
11 | 430902818625 |
12 | 178778124744 |
13 | 8b1a693549a |
14 | 4314c66a592 |
15 | 21b62c119ed |
hex | 11c48db4d24 |
1220993043748 has 12 divisors (see below), whose sum is σ = 2229639471360. Its totient is φ = 583953194792.
The previous prime is 1220993043727. The next prime is 1220993043761. The reversal of 1220993043748 is 8473403990221.
It is a junction number, because it is equal to n+sod(n) for n = 1220993043695 and 1220993043704.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6635831668 + ... + 6635831851.
It is an arithmetic number, because the mean of its divisors is an integer number (185803289280).
Almost surely, 21220993043748 is an apocalyptic number.
It is an amenable number.
1220993043748 is a deficient number, since it is larger than the sum of its proper divisors (1008646427612).
1220993043748 is a wasteful number, since it uses less digits than its factorization.
1220993043748 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13271663546 (or 13271663544 counting only the distinct ones).
The product of its (nonzero) digits is 2612736, while the sum is 52.
The spelling of 1220993043748 in words is "one trillion, two hundred twenty billion, nine hundred ninety-three million, forty-three thousand, seven hundred forty-eight".
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