Base | Representation |
---|---|
bin | 1000100101100… |
… | …00010010000111 |
3 | 12000112021000212 |
4 | 10102300102013 |
5 | 121414301343 |
6 | 11051430035 |
7 | 1533130034 |
oct | 422602207 |
9 | 160467025 |
10 | 72025223 |
11 | 37724686 |
12 | 2015531b |
13 | 11bca59a |
14 | 97cc38b |
15 | 64cac18 |
hex | 44b0487 |
72025223 has 4 divisors (see below), whose sum is σ = 72044280. Its totient is φ = 72006168.
The previous prime is 72025211. The next prime is 72025229. The reversal of 72025223 is 32252027.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32252027 = 101 ⋅319327.
It is a cyclic number.
It is not a de Polignac number, because 72025223 - 24 = 72025207 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72025229) 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, 1733 + ... + 12126.
It is an arithmetic number, because the mean of its divisors is an integer number (18011070).
Almost surely, 272025223 is an apocalyptic number.
72025223 is a deficient number, since it is larger than the sum of its proper divisors (19057).
72025223 is a wasteful number, since it uses less digits than its factorization.
72025223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19056.
The product of its (nonzero) digits is 1680, while the sum is 23.
The square root of 72025223 is about 8486.7675236217. The cubic root of 72025223 is about 416.0653385260.
The spelling of 72025223 in words is "seventy-two million, twenty-five thousand, two hundred twenty-three".
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