Base | Representation |
---|---|
bin | 1000100101100… |
… | …00010001100011 |
3 | 12000112020222112 |
4 | 10102300101203 |
5 | 121414301222 |
6 | 11051425535 |
7 | 1533126653 |
oct | 422602143 |
9 | 160466875 |
10 | 72025187 |
11 | 37724653 |
12 | 201552ab |
13 | 11bca570 |
14 | 97cc363 |
15 | 64cabe2 |
hex | 44b0463 |
72025187 has 8 divisors (see below), whose sum is σ = 77704704. Its totient is φ = 66365568.
The previous prime is 72025139. The next prime is 72025189. The reversal of 72025187 is 78152027.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 72025187 - 26 = 72025123 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (72025189) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3038 + ... + 12380.
It is an arithmetic number, because the mean of its divisors is an integer number (9713088).
Almost surely, 272025187 is an apocalyptic number.
72025187 is a deficient number, since it is larger than the sum of its proper divisors (5679517).
72025187 is a wasteful number, since it uses less digits than its factorization.
72025187 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9949.
The product of its (nonzero) digits is 7840, while the sum is 32.
The square root of 72025187 is about 8486.7654026726. The cubic root of 72025187 is about 416.0652692060.
Adding to 72025187 its product of nonzero digits (7840), we get a palindrome (72033027).
The spelling of 72025187 in words is "seventy-two million, twenty-five thousand, one hundred eighty-seven".
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