Base | Representation |
---|---|
bin | 100100011000011… |
… | …0001111100101110 |
3 | 10011002001101010212 |
4 | 1020300301330232 |
5 | 10000002401204 |
6 | 321044502422 |
7 | 42152115212 |
oct | 11060617456 |
9 | 3132041125 |
10 | 1220747054 |
11 | 57709736a |
12 | 2a09aaa12 |
13 | 165ba9947 |
14 | b81b0942 |
15 | 72287c6e |
hex | 48c31f2e |
1220747054 has 8 divisors (see below), whose sum is σ = 1894262760. Its totient is φ = 589326136.
The previous prime is 1220746981. The next prime is 1220747107. The reversal of 1220747054 is 4507470221.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 1220747054.
It is a congruent number.
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, 10523624 + ... + 10523739.
It is an arithmetic number, because the mean of its divisors is an integer number (236782845).
Almost surely, 21220747054 is an apocalyptic number.
1220747054 is a deficient number, since it is larger than the sum of its proper divisors (673515706).
1220747054 is a wasteful number, since it uses less digits than its factorization.
1220747054 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21047394.
The product of its (nonzero) digits is 15680, while the sum is 32.
The square root of 1220747054 is about 34939.1908034516. The cubic root of 1220747054 is about 1068.7477865782.
The spelling of 1220747054 in words is "one billion, two hundred twenty million, seven hundred forty-seven thousand, fifty-four".
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