Base | Representation |
---|---|
bin | 100110010000111… |
… | …1101010000001101 |
3 | 10022111000102210201 |
4 | 1030201331100031 |
5 | 10112144020221 |
6 | 331223533501 |
7 | 43550364643 |
oct | 11441752015 |
9 | 3274012721 |
10 | 1283970061 |
11 | 5a9849790 |
12 | 2b9bba291 |
13 | 1760148ca |
14 | c274b193 |
15 | 77ac5891 |
hex | 4c87d40d |
1283970061 has 8 divisors (see below), whose sum is σ = 1402249824. Its totient is φ = 1165949520.
The previous prime is 1283970047. The next prime is 1283970097. The reversal of 1283970061 is 1600793821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1283970061 - 217 = 1283838989 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1283970061.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1283970161) 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, 54370 + ... + 74323.
It is an arithmetic number, because the mean of its divisors is an integer number (175281228).
Almost surely, 21283970061 is an apocalyptic number.
1283970061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
1283970061 is a deficient number, since it is larger than the sum of its proper divisors (118279763).
1283970061 is a wasteful number, since it uses less digits than its factorization.
1283970061 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 129611.
The product of its (nonzero) digits is 18144, while the sum is 37.
The square root of 1283970061 is about 35832.5279738955. The cubic root of 1283970061 is about 1086.8884301041. Note that the first 3 decimals are identical.
The spelling of 1283970061 in words is "one billion, two hundred eighty-three million, nine hundred seventy thousand, sixty-one".
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