Base | Representation |
---|---|
bin | 111011111010… |
… | …0110011100110 |
3 | 2012002212101022 |
4 | 1313310303212 |
5 | 31020131210 |
6 | 3041131142 |
7 | 530664341 |
oct | 167646346 |
9 | 65085338 |
10 | 31411430 |
11 | 16804966 |
12 | a629ab2 |
13 | 667a55b |
14 | 4259458 |
15 | 2b57155 |
hex | 1df4ce6 |
31411430 has 8 divisors (see below), whose sum is σ = 56540592. Its totient is φ = 12564568.
The previous prime is 31411411. The next prime is 31411447. The reversal of 31411430 is 3411413.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 31411399 and 31411408.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1570562 + ... + 1570581.
It is an arithmetic number, because the mean of its divisors is an integer number (7067574).
Almost surely, 231411430 is an apocalyptic number.
31411430 is a deficient number, since it is larger than the sum of its proper divisors (25129162).
31411430 is a wasteful number, since it uses less digits than its factorization.
31411430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3141150.
The product of its (nonzero) digits is 144, while the sum is 17.
The square root of 31411430 is about 5604.5900831372. The cubic root of 31411430 is about 315.5217020392.
Subtracting from 31411430 its sum of digits (17), we obtain a palindrome (31411413).
Adding to 31411430 its reverse (3411413), we get a palindrome (34822843).
The spelling of 31411430 in words is "thirty-one million, four hundred eleven thousand, four hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.079 sec. • engine limits •