Base | Representation |
---|---|
bin | 1000101011111… |
… | …11000100000111 |
3 | 12002010021212100 |
4 | 10111333010013 |
5 | 122123402244 |
6 | 11121523143 |
7 | 1543255251 |
oct | 425770407 |
9 | 162107770 |
10 | 72872199 |
11 | 38152a64 |
12 | 204a34b3 |
13 | 12135c5a |
14 | 996ccd1 |
15 | 65e6b69 |
hex | 457f107 |
72872199 has 12 divisors (see below), whose sum is σ = 106743312. Its totient is φ = 47896800.
The previous prime is 72872197. The next prime is 72872209. The reversal of 72872199 is 99127827.
It is not a de Polignac number, because 72872199 - 21 = 72872197 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72872197) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56382 + ... + 57659.
It is an arithmetic number, because the mean of its divisors is an integer number (8895276).
Almost surely, 272872199 is an apocalyptic number.
72872199 is a deficient number, since it is larger than the sum of its proper divisors (33871113).
72872199 is a wasteful number, since it uses less digits than its factorization.
72872199 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 114118 (or 114115 counting only the distinct ones).
The product of its digits is 127008, while the sum is 45.
The square root of 72872199 is about 8536.5214812592. The cubic root of 72872199 is about 417.6898850588.
It can be divided in two parts, 728 and 72199, that added together give a palindrome (72927).
The spelling of 72872199 in words is "seventy-two million, eight hundred seventy-two thousand, one hundred ninety-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •