Base | Representation |
---|---|
bin | 111111100000101… |
… | …0000010001001111 |
3 | 12111111220210202012 |
4 | 1333001100101033 |
5 | 13331021111330 |
6 | 551243251435 |
7 | 103544333441 |
oct | 17701202117 |
9 | 5444823665 |
10 | 2131035215 |
11 | 9a3a06331 |
12 | 4b5819b7b |
13 | 27c6660aa |
14 | 163048491 |
15 | c7147c95 |
hex | 7f05044f |
2131035215 has 8 divisors (see below), whose sum is σ = 2668426848. Its totient is φ = 1630705120.
The previous prime is 2131035173. The next prime is 2131035227. The reversal of 2131035215 is 5125301312.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2131035215 - 216 = 2130969679 is a prime.
It is a super-2 number, since 2×21310352152 = 9082622175140192450, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (23).
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9265256 + ... + 9265485.
It is an arithmetic number, because the mean of its divisors is an integer number (333553356).
Almost surely, 22131035215 is an apocalyptic number.
2131035215 is a deficient number, since it is larger than the sum of its proper divisors (537391633).
2131035215 is a wasteful number, since it uses less digits than its factorization.
2131035215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18530769.
The product of its (nonzero) digits is 900, while the sum is 23.
The square root of 2131035215 is about 46163.1369709642. The cubic root of 2131035215 is about 1286.8567615440.
Adding to 2131035215 its reverse (5125301312), we get a palindrome (7256336527).
The spelling of 2131035215 in words is "two billion, one hundred thirty-one million, thirty-five thousand, two hundred fifteen".
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