Base | Representation |
---|---|
bin | 111111100010111… |
… | …0001100001111111 |
3 | 12111121011000000021 |
4 | 1333011301201333 |
5 | 13331322020111 |
6 | 551324513011 |
7 | 103560366634 |
oct | 17705614177 |
9 | 5447130007 |
10 | 2132220031 |
11 | 9a4645517 |
12 | 4b60ab767 |
13 | 27c98c476 |
14 | 16327618b |
15 | c72cdd71 |
hex | 7f17187f |
2132220031 has 4 divisors (see below), whose sum is σ = 2132411632. Its totient is φ = 2132028432.
The previous prime is 2132220029. The next prime is 2132220091. The reversal of 2132220031 is 1300222312.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 2132220031 - 21 = 2132220029 is a prime.
It is a super-2 number, since 2×21322200312 = 9092724521195281922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2132219987 and 2132220014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2132220091) 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, 78006 + ... + 101731.
It is an arithmetic number, because the mean of its divisors is an integer number (533102908).
Almost surely, 22132220031 is an apocalyptic number.
2132220031 is a deficient number, since it is larger than the sum of its proper divisors (191601).
2132220031 is a wasteful number, since it uses less digits than its factorization.
2132220031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 191600.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 2132220031 is about 46175.9681111290. The cubic root of 2132220031 is about 1287.0952068454.
Adding to 2132220031 its reverse (1300222312), we get a palindrome (3432442343).
The spelling of 2132220031 in words is "two billion, one hundred thirty-two million, two hundred twenty thousand, thirty-one".
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