Base | Representation |
---|---|
bin | 11001010001011… |
… | …10010001010011 |
3 | 112202220210220022 |
4 | 30220232101103 |
5 | 413233030000 |
6 | 33011534055 |
7 | 5152662161 |
oct | 1450562123 |
9 | 482823808 |
10 | 212001875 |
11 | a9740168 |
12 | 5abba32b |
13 | 34bca0c7 |
14 | 20228231 |
15 | 1392a585 |
hex | ca2e453 |
212001875 has 20 divisors (see below), whose sum is σ = 266670888. Its totient is φ = 168480000.
The previous prime is 212001847. The next prime is 212001877. The reversal of 212001875 is 578100212.
It is not a de Polignac number, because 212001875 - 28 = 212001619 is a prime.
It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (212001877) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 100835 + ... + 102915.
Almost surely, 2212001875 is an apocalyptic number.
212001875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
212001875 is a deficient number, since it is larger than the sum of its proper divisors (54669013).
212001875 is an equidigital number, since it uses as much as digits as its factorization.
212001875 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2264 (or 2249 counting only the distinct ones).
The product of its (nonzero) digits is 1120, while the sum is 26.
The square root of 212001875 is about 14560.2841661830. The cubic root of 212001875 is about 596.2749536501.
The spelling of 212001875 in words is "two hundred twelve million, one thousand, eight hundred seventy-five".
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