Base | Representation |
---|---|
bin | 100001100100111001… |
… | …1100000101000001111 |
3 | 20220010010122200120021 |
4 | 1003021303200220033 |
5 | 2140132412401033 |
6 | 53042532403011 |
7 | 5131556042254 |
oct | 1031163405017 |
9 | 226103580507 |
10 | 72105200143 |
11 | 286415620a9 |
12 | 11b83a76467 |
13 | 6a51636402 |
14 | 36c045742b |
15 | 1d20353b2d |
hex | 10c9ce0a0f |
72105200143 has 2 divisors, whose sum is σ = 72105200144. Its totient is φ = 72105200142.
The previous prime is 72105200093. The next prime is 72105200149. The reversal of 72105200143 is 34100250127.
It is a happy number.
It is a strong prime.
It is an emirp because it is prime and its reverse (34100250127) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 72105200143 - 29 = 72105199631 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (72105200149) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36052600071 + 36052600072.
It is an arithmetic number, because the mean of its divisors is an integer number (36052600072).
Almost surely, 272105200143 is an apocalyptic number.
72105200143 is a deficient number, since it is larger than the sum of its proper divisors (1).
72105200143 is an equidigital number, since it uses as much as digits as its factorization.
72105200143 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1680, while the sum is 25.
The spelling of 72105200143 in words is "seventy-two billion, one hundred five million, two hundred thousand, one hundred forty-three".
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