Base | Representation |
---|---|
bin | 11001100011110… |
… | …00110001110111 |
3 | 112221102212021212 |
4 | 30301320301313 |
5 | 414341413330 |
6 | 33135232035 |
7 | 5212256114 |
oct | 1461706167 |
9 | 487385255 |
10 | 214404215 |
11 | 100031073 |
12 | 5b97861b |
13 | 3555b6cc |
14 | 2069190b |
15 | 13c52295 |
hex | cc78c77 |
214404215 has 16 divisors (see below), whose sum is σ = 266547456. Its totient is φ = 165388800.
The previous prime is 214404193. The next prime is 214404247. The reversal of 214404215 is 512404412.
It is a de Polignac number, because none of the positive numbers 2k-214404215 is a prime.
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 15 ways as a sum of consecutive naturals, for example, 43055 + ... + 47775.
It is an arithmetic number, because the mean of its divisors is an integer number (16659216).
Almost surely, 2214404215 is an apocalyptic number.
214404215 is a deficient number, since it is larger than the sum of its proper divisors (52143241).
214404215 is a wasteful number, since it uses less digits than its factorization.
214404215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5050.
The product of its (nonzero) digits is 1280, while the sum is 23.
The square root of 214404215 is about 14642.5481047528. The cubic root of 214404215 is about 598.5187675562.
Adding to 214404215 its reverse (512404412), we get a palindrome (726808627).
The spelling of 214404215 in words is "two hundred fourteen million, four hundred four thousand, two hundred fifteen".
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