Base | Representation |
---|---|
bin | 11101000011110000… |
… | …000000111011001001 |
3 | 2222112110222221012111 |
4 | 131003300000323021 |
5 | 1002400031244431 |
6 | 22200030542321 |
7 | 2153125534561 |
oct | 350360007311 |
9 | 88473887174 |
10 | 31201431241 |
11 | 12261438112 |
12 | 60693679a1 |
13 | 2c3326ab66 |
14 | 171dc2bda1 |
15 | c293487b1 |
hex | 743c00ec9 |
31201431241 has 8 divisors (see below), whose sum is σ = 32687734464. Its totient is φ = 29725938000.
The previous prime is 31201431223. The next prime is 31201431269. The reversal of 31201431241 is 14213410213.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 31201431241 - 219 = 31200906953 is a prime.
It is a super-2 number, since 2×312014312412 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (31201431281) 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, 2696586 + ... + 2708131.
It is an arithmetic number, because the mean of its divisors is an integer number (4085966808).
Almost surely, 231201431241 is an apocalyptic number.
It is an amenable number.
31201431241 is a deficient number, since it is larger than the sum of its proper divisors (1486303223).
31201431241 is a wasteful number, since it uses less digits than its factorization.
31201431241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5404991.
The product of its (nonzero) digits is 576, while the sum is 22.
Adding to 31201431241 its reverse (14213410213), we get a palindrome (45414841454).
The spelling of 31201431241 in words is "thirty-one billion, two hundred one million, four hundred thirty-one thousand, two hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •