Base | Representation |
---|---|
bin | 1010011001111… |
… | …00100001111101 |
3 | 20002020021022000 |
4 | 11030330201331 |
5 | 134320422431 |
6 | 12354412513 |
7 | 2106602613 |
oct | 514744175 |
9 | 202207260 |
10 | 87279741 |
11 | 452a361a |
12 | 25291139 |
13 | 1510ba23 |
14 | b83d6b3 |
15 | 79e09e6 |
hex | 533c87d |
87279741 has 16 divisors (see below), whose sum is σ = 129467520. Its totient is φ = 58112640.
The previous prime is 87279739. The next prime is 87279769. The reversal of 87279741 is 14797278.
It is a happy number.
It is not a de Polignac number, because 87279741 - 21 = 87279739 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87279701) 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, 27181 + ... + 30221.
It is an arithmetic number, because the mean of its divisors is an integer number (8091720).
Almost surely, 287279741 is an apocalyptic number.
It is an amenable number.
87279741 is a deficient number, since it is larger than the sum of its proper divisors (42187779).
87279741 is a wasteful number, since it uses less digits than its factorization.
87279741 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4113 (or 4107 counting only the distinct ones).
The product of its digits is 197568, while the sum is 45.
The square root of 87279741 is about 9342.3627097218. The cubic root of 87279741 is about 443.5791757748.
The spelling of 87279741 in words is "eighty-seven million, two hundred seventy-nine thousand, seven hundred forty-one".
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