Base | Representation |
---|---|
bin | 1001001001011001110… |
… | …0100010101011100111 |
3 | 120000121120001202222020 |
4 | 2102112130202223213 |
5 | 10033312034342033 |
6 | 200105045234223 |
7 | 14232101334054 |
oct | 2222634425347 |
9 | 500546052866 |
10 | 157142887143 |
11 | 6070a076a70 |
12 | 26556a02973 |
13 | 11a843638b8 |
14 | 786a2a402b |
15 | 414ac206b3 |
hex | 2496722ae7 |
157142887143 has 32 divisors (see below), whose sum is σ = 238542520320. Its totient is φ = 91084662240.
The previous prime is 157142887133. The next prime is 157142887159. The reversal of 157142887143 is 341788241751.
157142887143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 157142887143 - 212 = 157142883047 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (157142887103) 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 31 ways as a sum of consecutive naturals, for example, 10727218 + ... + 10741856.
It is an arithmetic number, because the mean of its divisors is an integer number (7454453760).
Almost surely, 2157142887143 is an apocalyptic number.
157142887143 is a deficient number, since it is larger than the sum of its proper divisors (81399633177).
157142887143 is a wasteful number, since it uses less digits than its factorization.
157142887143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28819.
The product of its digits is 1505280, while the sum is 51.
The spelling of 157142887143 in words is "one hundred fifty-seven billion, one hundred forty-two million, eight hundred eighty-seven thousand, one hundred forty-three".
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