Base | Representation |
---|---|
bin | 1000010011111010… |
… | …1101000100001111 |
3 | 12202111002001211220 |
4 | 2010332231010033 |
5 | 14032120430111 |
6 | 1005214414423 |
7 | 106200304506 |
oct | 20476550417 |
9 | 5674061756 |
10 | 2231030031 |
11 | a453a397a |
12 | 523201413 |
13 | 2972a7419 |
14 | 17243783d |
15 | d0ceae06 |
hex | 84fad10f |
2231030031 has 16 divisors (see below), whose sum is σ = 2986566528. Its totient is φ = 1481436000.
The previous prime is 2231030023. The next prime is 2231030069. The reversal of 2231030031 is 1300301322.
2231030031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 2231030031 - 23 = 2231030023 is a prime.
It is a super-3 number, since 3×22310300313 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2231038031) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1536856 + ... + 1538306.
It is an arithmetic number, because the mean of its divisors is an integer number (186660408).
Almost surely, 22231030031 is an apocalyptic number.
2231030031 is a deficient number, since it is larger than the sum of its proper divisors (755536497).
2231030031 is a wasteful number, since it uses less digits than its factorization.
2231030031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3142.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 2231030031 is about 47233.7806130316. The cubic root of 2231030031 is about 1306.6776778785.
Adding to 2231030031 its reverse (1300301322), we get a palindrome (3531331353).
The spelling of 2231030031 in words is "two billion, two hundred thirty-one million, thirty thousand, thirty-one".
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