Base | Representation |
---|---|
bin | 111111111001100… |
… | …111110111111111 |
3 | 2202201021210202121 |
4 | 333321213313333 |
5 | 4143422221033 |
6 | 254214103411 |
7 | 35365305634 |
oct | 7771476777 |
9 | 2681253677 |
10 | 1072070143 |
11 | 500179191 |
12 | 25b04ab67 |
13 | 141152041 |
14 | a254c18b |
15 | 641ba62d |
hex | 3fe67dff |
1072070143 has 4 divisors (see below), whose sum is σ = 1073052088. Its totient is φ = 1071088200.
The previous prime is 1072070029. The next prime is 1072070147. The reversal of 1072070143 is 3410702701.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 1072070143 - 213 = 1072061951 is a prime.
It is a super-2 number, since 2×10720701432 = 2298668783024080898, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1072070147) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489333 + ... + 491518.
It is an arithmetic number, because the mean of its divisors is an integer number (268263022).
Almost surely, 21072070143 is an apocalyptic number.
1072070143 is a deficient number, since it is larger than the sum of its proper divisors (981945).
1072070143 is an equidigital number, since it uses as much as digits as its factorization.
1072070143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 981944.
The product of its (nonzero) digits is 1176, while the sum is 25.
The square root of 1072070143 is about 32742.4822363852. The cubic root of 1072070143 is about 1023.4683109018.
Adding to 1072070143 its reverse (3410702701), we get a palindrome (4482772844).
The spelling of 1072070143 in words is "one billion, seventy-two million, seventy thousand, one hundred forty-three".
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