Base | Representation |
---|---|
bin | 111100100010001… |
… | …1101011001011100 |
3 | 12020120002021012200 |
4 | 1321010131121130 |
5 | 13124442241444 |
6 | 533315531500 |
7 | 101223006144 |
oct | 17104353134 |
9 | 5216067180 |
10 | 2031212124 |
11 | 952625807 |
12 | 4882b9b90 |
13 | 264a84c86 |
14 | 153aa1924 |
15 | bd4ca969 |
hex | 7911d65c |
2031212124 has 36 divisors (see below), whose sum is σ = 5152621656. Its totient is φ = 674674848.
The previous prime is 2031212123. The next prime is 2031212129. The reversal of 2031212124 is 4212121302.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 2031212097 and 2031212106.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2031212123) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89499 + ... + 109874.
Almost surely, 22031212124 is an apocalyptic number.
It is an amenable number.
2031212124 is an abundant number, since it is smaller than the sum of its proper divisors (3121409532).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2031212124 is a wasteful number, since it uses less digits than its factorization.
2031212124 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 199666 (or 199661 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 2031212124 is about 45068.9707448484. The cubic root of 2031212124 is about 1266.4413830493.
Adding to 2031212124 its reverse (4212121302), we get a palindrome (6243333426).
The spelling of 2031212124 in words is "two billion, thirty-one million, two hundred twelve thousand, one hundred twenty-four".
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