Base | Representation |
---|---|
bin | 1000100110110… |
… | …11101111000001 |
3 | 12000212022011122 |
4 | 10103123233001 |
5 | 121441000301 |
6 | 11055322025 |
7 | 1534500650 |
oct | 423335701 |
9 | 160768148 |
10 | 72203201 |
11 | 37836374 |
12 | 20220315 |
13 | 11c605b5 |
14 | 9837197 |
15 | 651381b |
hex | 44dbbc1 |
72203201 has 8 divisors (see below), whose sum is σ = 83044800. Its totient is φ = 61493328.
The previous prime is 72203179. The next prime is 72203207. The reversal of 72203201 is 10230227.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-72203201 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 72203201.
It is not an unprimeable number, because it can be changed into a prime (72203207) 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, 31751 + ... + 33948.
It is an arithmetic number, because the mean of its divisors is an integer number (10380600).
Almost surely, 272203201 is an apocalyptic number.
It is an amenable number.
72203201 is a deficient number, since it is larger than the sum of its proper divisors (10841599).
72203201 is a wasteful number, since it uses less digits than its factorization.
72203201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65863.
The product of its (nonzero) digits is 168, while the sum is 17.
The square root of 72203201 is about 8497.2466717167. The cubic root of 72203201 is about 416.4077628563.
Adding to 72203201 its reverse (10230227), we get a palindrome (82433428).
The spelling of 72203201 in words is "seventy-two million, two hundred three thousand, two hundred one".
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