Base | Representation |
---|---|
bin | 100110011110010… |
… | …0110100011111111 |
3 | 10022222011022100102 |
4 | 1030330212203333 |
5 | 10120441030012 |
6 | 332033351315 |
7 | 43663636136 |
oct | 11474464377 |
9 | 3288138312 |
10 | 1290955007 |
11 | 60278a671 |
12 | 30040853b |
13 | 1775bc004 |
14 | c364891d |
15 | 785052c2 |
hex | 4cf268ff |
1290955007 has 4 divisors (see below), whose sum is σ = 1291038600. Its totient is φ = 1290871416.
The previous prime is 1290954991. The next prime is 1290955009. The reversal of 1290955007 is 7005590921.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 1290955007 - 24 = 1290954991 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1290955009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11132 + ... + 52017.
It is an arithmetic number, because the mean of its divisors is an integer number (322759650).
Almost surely, 21290955007 is an apocalyptic number.
1290955007 is a deficient number, since it is larger than the sum of its proper divisors (83593).
1290955007 is an equidigital number, since it uses as much as digits as its factorization.
1290955007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 83592.
The product of its (nonzero) digits is 28350, while the sum is 38.
The square root of 1290955007 is about 35929.8623292659. The cubic root of 1290955007 is about 1088.8557998580.
The spelling of 1290955007 in words is "one billion, two hundred ninety million, nine hundred fifty-five thousand, seven".
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