Base | Representation |
---|---|
bin | 101000100101000010… |
… | …1001101000100110110 |
3 | 22022221002110122200112 |
4 | 1101022011031010312 |
5 | 2411431402133212 |
6 | 104011012143022 |
7 | 6203315453426 |
oct | 1211205150466 |
9 | 268832418615 |
10 | 87142224182 |
11 | 33a585718a2 |
12 | 14a7b907a72 |
13 | 82a9a46580 |
14 | 4309558486 |
15 | 240052d422 |
hex | 144a14d136 |
87142224182 has 32 divisors (see below), whose sum is σ = 144485782560. Its totient is φ = 39161191680.
The previous prime is 87142224181. The next prime is 87142224193. The reversal of 87142224182 is 28142224178.
It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Harshad number since it is a multiple of its sum of digits (41).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87142224181) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462293 + ... + 622895.
It is an arithmetic number, because the mean of its divisors is an integer number (4515180705).
Almost surely, 287142224182 is an apocalyptic number.
87142224182 is a gapful number since it is divisible by the number (82) formed by its first and last digit.
87142224182 is a deficient number, since it is larger than the sum of its proper divisors (57343558378).
87142224182 is a wasteful number, since it uses less digits than its factorization.
87142224182 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 161168.
The product of its digits is 114688, while the sum is 41.
The spelling of 87142224182 in words is "eighty-seven billion, one hundred forty-two million, two hundred twenty-four thousand, one hundred eighty-two".
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