Base | Representation |
---|---|
bin | 1000010011101100… |
… | …1110111101100011 |
3 | 12202102100211220211 |
4 | 2010323032331203 |
5 | 14031402322131 |
6 | 1005143114551 |
7 | 106156465300 |
oct | 20473167543 |
9 | 5672324824 |
10 | 2230120291 |
11 | a44932423 |
12 | 522a42a57 |
13 | 297049309 |
14 | 17227c0a7 |
15 | d0bbb5b1 |
hex | 84ecef63 |
2230120291 has 12 divisors (see below), whose sum is σ = 2638194840. Its totient is φ = 1879130400.
The previous prime is 2230120267. The next prime is 2230120297. The reversal of 2230120291 is 1920210322.
It is not a de Polignac number, because 2230120291 - 221 = 2228023139 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2230120297) 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, 382810 + ... + 388591.
It is an arithmetic number, because the mean of its divisors is an integer number (219849570).
Almost surely, 22230120291 is an apocalyptic number.
2230120291 is a deficient number, since it is larger than the sum of its proper divisors (408074549).
2230120291 is an equidigital number, since it uses as much as digits as its factorization.
2230120291 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 771474 (or 771467 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 22.
The square root of 2230120291 is about 47224.1494470785. The cubic root of 2230120291 is about 1306.5000471359.
The spelling of 2230120291 in words is "two billion, two hundred thirty million, one hundred twenty thousand, two hundred ninety-one".
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