Base | Representation |
---|---|
bin | 111100010100110… |
… | …001110111000111 |
3 | 2121112101222212002 |
4 | 330110301313013 |
5 | 4033043030241 |
6 | 244232215515 |
7 | 34036352522 |
oct | 7424616707 |
9 | 2545358762 |
10 | 1012080071 |
11 | 47a324812 |
12 | 242b3a59b |
13 | 1318a9762 |
14 | 985b3bb9 |
15 | 5dcba89b |
hex | 3c531dc7 |
1012080071 has 4 divisors (see below), whose sum is σ = 1013654712. Its totient is φ = 1010505432.
The previous prime is 1012080061. The next prime is 1012080137. The reversal of 1012080071 is 1700802101.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1700802101 = 109 ⋅15603689.
It is a cyclic number.
It is not a de Polignac number, because 1012080071 - 226 = 944971207 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 (1012080031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786356 + ... + 787641.
It is an arithmetic number, because the mean of its divisors is an integer number (253413678).
Almost surely, 21012080071 is an apocalyptic number.
1012080071 is a deficient number, since it is larger than the sum of its proper divisors (1574641).
1012080071 is an equidigital number, since it uses as much as digits as its factorization.
1012080071 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1574640.
The product of its (nonzero) digits is 112, while the sum is 20.
The square root of 1012080071 is about 31813.2059214409. The cubic root of 1012080071 is about 1004.0105840458.
Adding to 1012080071 its reverse (1700802101), we get a palindrome (2712882172).
The spelling of 1012080071 in words is "one billion, twelve million, eighty thousand, seventy-one".
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