Base | Representation |
---|---|
bin | 101000101000011010… |
… | …0011111001011001110 |
3 | 22100012222012121101021 |
4 | 1101100310133023032 |
5 | 2412144323014012 |
6 | 104030131304354 |
7 | 6206160443242 |
oct | 1212064371316 |
9 | 270188177337 |
10 | 87255282382 |
11 | 34006372124 |
12 | 14ab174b0ba |
13 | 82c72ac908 |
14 | 431a588422 |
15 | 240a412007 |
hex | 1450d1f2ce |
87255282382 has 4 divisors (see below), whose sum is σ = 130882923576. Its totient is φ = 43627641190.
The previous prime is 87255282347. The next prime is 87255282397. The reversal of 87255282382 is 28328255278.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28328255278 = 2 ⋅14164127639.
It is a super-2 number, since 2×872552823822 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21813820594 + ... + 21813820597.
It is an arithmetic number, because the mean of its divisors is an integer number (32720730894).
Almost surely, 287255282382 is an apocalyptic number.
87255282382 is a deficient number, since it is larger than the sum of its proper divisors (43627641194).
87255282382 is a wasteful number, since it uses less digits than its factorization.
87255282382 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43627641193.
The product of its digits is 4300800, while the sum is 52.
The spelling of 87255282382 in words is "eighty-seven billion, two hundred fifty-five million, two hundred eighty-two thousand, three hundred eighty-two".
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