Base | Representation |
---|---|
bin | 1010011000010… |
… | …10000100010100 |
3 | 20001211202202120 |
4 | 11030022010110 |
5 | 134242314134 |
6 | 12350135540 |
7 | 2105052162 |
oct | 514120424 |
9 | 201752676 |
10 | 87073044 |
11 | 451722a3 |
12 | 251b15b0 |
13 | 15068916 |
14 | b7c8232 |
15 | 799e649 |
hex | 530a114 |
87073044 has 12 divisors (see below), whose sum is σ = 203170464. Its totient is φ = 29024344.
The previous prime is 87073043. The next prime is 87073073. The reversal of 87073044 is 44037078.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (12).
It is a junction number, because it is equal to n+sod(n) for n = 87072996 and 87073014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87073043) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3628032 + ... + 3628055.
It is an arithmetic number, because the mean of its divisors is an integer number (16930872).
Almost surely, 287073044 is an apocalyptic number.
It is an amenable number.
87073044 is an abundant number, since it is smaller than the sum of its proper divisors (116097420).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87073044 is a wasteful number, since it uses less digits than its factorization.
87073044 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7256094 (or 7256092 counting only the distinct ones).
The product of its (nonzero) digits is 18816, while the sum is 33.
The square root of 87073044 is about 9331.2938009689. The cubic root of 87073044 is about 443.2287356959.
The spelling of 87073044 in words is "eighty-seven million, seventy-three thousand, forty-four".
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