Base | Representation |
---|---|
bin | 1101110101001010… |
… | …00010111000110111 |
3 | 201011110220022021021 |
4 | 12322211002320313 |
5 | 110201330200011 |
6 | 3224444402011 |
7 | 352001334604 |
oct | 67245027067 |
9 | 21143808237 |
10 | 7425240631 |
11 | 317039a206 |
12 | 1532846307 |
13 | 914444113 |
14 | 5062116ab |
15 | 2d6d16471 |
hex | 1ba942e37 |
7425240631 has 4 divisors (see below), whose sum is σ = 7436274352. Its totient is φ = 7414206912.
The previous prime is 7425240611. The next prime is 7425240701. The reversal of 7425240631 is 1360425247.
7425240631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1360425247 = 487 ⋅2793481.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-7425240631 is a prime.
It is a super-2 number, since 2×74252406312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7425240611) 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, 5515851 + ... + 5517196.
It is an arithmetic number, because the mean of its divisors is an integer number (1859068588).
Almost surely, 27425240631 is an apocalyptic number.
7425240631 is a deficient number, since it is larger than the sum of its proper divisors (11033721).
7425240631 is a wasteful number, since it uses less digits than its factorization.
7425240631 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11033720.
The product of its (nonzero) digits is 40320, while the sum is 34.
The square root of 7425240631 is about 86169.8359694389. The cubic root of 7425240631 is about 1950.9082449734.
Adding to 7425240631 its reverse (1360425247), we get a palindrome (8785665878).
The spelling of 7425240631 in words is "seven billion, four hundred twenty-five million, two hundred forty thousand, six hundred thirty-one".
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