Base | Representation |
---|---|
bin | 1000100101111… |
… | …00011101001111 |
3 | 12000121210102200 |
4 | 10102330131033 |
5 | 121422400322 |
6 | 11052452543 |
7 | 1533425310 |
oct | 422743517 |
9 | 160553380 |
10 | 72075087 |
11 | 37759097 |
12 | 2017a153 |
13 | 11c171a6 |
14 | 9802607 |
15 | 64da8ac |
hex | 44bc74f |
72075087 has 48 divisors (see below), whose sum is σ = 127033920. Its totient is φ = 38439936.
The previous prime is 72075083. The next prime is 72075109. The reversal of 72075087 is 78057027.
It is not a de Polignac number, because 72075087 - 22 = 72075083 is a prime.
It is a super-3 number, since 3×720750873 (a number of 25 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72075083) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 185089 + ... + 185477.
It is an arithmetic number, because the mean of its divisors is an integer number (2646540).
Almost surely, 272075087 is an apocalyptic number.
72075087 is a deficient number, since it is larger than the sum of its proper divisors (54958833).
72075087 is a wasteful number, since it uses less digits than its factorization.
72075087 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 592 (or 589 counting only the distinct ones).
The product of its (nonzero) digits is 27440, while the sum is 36.
The square root of 72075087 is about 8489.7047651847. The cubic root of 72075087 is about 416.1613321945.
The spelling of 72075087 in words is "seventy-two million, seventy-five thousand, eighty-seven".
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