Base | Representation |
---|---|
bin | 111110111100100… |
… | …1110001010001101 |
3 | 12110012101110010110 |
4 | 1331321032022031 |
5 | 13311202332310 |
6 | 545330430233 |
7 | 103224666102 |
oct | 17571161215 |
9 | 5405343113 |
10 | 2112152205 |
11 | 994289239 |
12 | 4ab432379 |
13 | 278784207 |
14 | 160730aa9 |
15 | c5667d20 |
hex | 7de4e28d |
2112152205 has 32 divisors (see below), whose sum is σ = 3421482624. Its totient is φ = 1112518656.
The previous prime is 2112152201. The next prime is 2112152209. The reversal of 2112152205 is 5022512112.
It is an interprime number because it is at equal distance from previous prime (2112152201) and next prime (2112152209).
It is not a de Polignac number, because 2112152205 - 22 = 2112152201 is a prime.
It is a super-2 number, since 2×21121522052 = 8922373874172724050, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2112152201) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 852849 + ... + 855321.
It is an arithmetic number, because the mean of its divisors is an integer number (106921332).
Almost surely, 22112152205 is an apocalyptic number.
It is an amenable number.
2112152205 is a deficient number, since it is larger than the sum of its proper divisors (1309330419).
2112152205 is a wasteful number, since it uses less digits than its factorization.
2112152205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3165.
The product of its (nonzero) digits is 400, while the sum is 21.
The square root of 2112152205 is about 45958.1571105718. The cubic root of 2112152205 is about 1283.0445521395.
Adding to 2112152205 its reverse (5022512112), we get a palindrome (7134664317).
The spelling of 2112152205 in words is "two billion, one hundred twelve million, one hundred fifty-two thousand, two hundred five".
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