Base | Representation |
---|---|
bin | 1010101100111100… |
… | …0101001000110111 |
3 | 21102012210021010102 |
4 | 2223033011020313 |
5 | 21340422412033 |
6 | 1153023144315 |
7 | 131122611542 |
oct | 25317051067 |
9 | 7365707112 |
10 | 2872857143 |
11 | 1244720102 |
12 | 68214509b |
13 | 36a259390 |
14 | 1d378b859 |
15 | 11c32bde8 |
hex | ab3c5237 |
2872857143 has 8 divisors (see below), whose sum is σ = 3116106000. Its totient is φ = 2632788288.
The previous prime is 2872857059. The next prime is 2872857173. The reversal of 2872857143 is 3417582782.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2872857143 - 212 = 2872853047 is a prime.
It is a super-2 number, since 2×28728571432 = 16506616328172244898, 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 (2872857173) 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 7 ways as a sum of consecutive naturals, for example, 793118 + ... + 796731.
It is an arithmetic number, because the mean of its divisors is an integer number (389513250).
Almost surely, 22872857143 is an apocalyptic number.
2872857143 is a deficient number, since it is larger than the sum of its proper divisors (243248857).
2872857143 is a wasteful number, since it uses less digits than its factorization.
2872857143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1590001.
The product of its digits is 752640, while the sum is 47.
The square root of 2872857143 is about 53599.0405044717. The cubic root of 2872857143 is about 1421.5801267415.
The spelling of 2872857143 in words is "two billion, eight hundred seventy-two million, eight hundred fifty-seven thousand, one hundred forty-three".
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