Base | Representation |
---|---|
bin | 111011111110… |
… | …0000101111000 |
3 | 2012011101022120 |
4 | 1313330011320 |
5 | 31022110042 |
6 | 3041521240 |
7 | 531150342 |
oct | 167740570 |
9 | 65141276 |
10 | 31441272 |
11 | 16825325 |
12 | a643220 |
13 | 668b005 |
14 | 4266292 |
15 | 2b60dec |
hex | 1dfc178 |
31441272 has 16 divisors (see below), whose sum is σ = 78603240. Its totient is φ = 10480416.
The previous prime is 31441271. The next prime is 31441273. The reversal of 31441272 is 27214413.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (31441271) and next prime (31441273).
It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1310053 = 31441272 / (3 + 1 + 4 + 4 + 1 + 2 + 7 + 2).
It is a nialpdrome in base 12.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31441271) 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, 655003 + ... + 655050.
Almost surely, 231441272 is an apocalyptic number.
It is an amenable number.
31441272 is an abundant number, since it is smaller than the sum of its proper divisors (47161968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31441272 is a wasteful number, since it uses less digits than its factorization.
31441272 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1310062 (or 1310058 counting only the distinct ones).
The product of its digits is 1344, while the sum is 24.
The square root of 31441272 is about 5607.2517332469. The cubic root of 31441272 is about 315.6215894413.
Adding to 31441272 its reverse (27214413), we get a palindrome (58655685).
It can be divided in two parts, 31441 and 272, that added together give a palindrome (31713).
The spelling of 31441272 in words is "thirty-one million, four hundred forty-one thousand, two hundred seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •