Base | Representation |
---|---|
bin | 1000011111111001… |
… | …1101101000000111 |
3 | 12212222122222010210 |
4 | 2013332131220013 |
5 | 14133003022224 |
6 | 1014212050503 |
7 | 110350500600 |
oct | 20776355007 |
9 | 5788588123 |
10 | 2281298439 |
11 | a70808312 |
12 | 538003a33 |
13 | 2a4827a44 |
14 | 178da0da7 |
15 | d542a429 |
hex | 87f9da07 |
2281298439 has 24 divisors (see below), whose sum is σ = 3545659008. Its totient is φ = 1300902960.
The previous prime is 2281298377. The next prime is 2281298449. The reversal of 2281298439 is 9348921822.
It is not a de Polignac number, because 2281298439 - 212 = 2281294343 is a prime.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2281298449) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56374 + ... + 87980.
It is an arithmetic number, because the mean of its divisors is an integer number (147735792).
Almost surely, 22281298439 is an apocalyptic number.
2281298439 is a deficient number, since it is larger than the sum of its proper divisors (1264360569).
2281298439 is a wasteful number, since it uses less digits than its factorization.
2281298439 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32115 (or 32108 counting only the distinct ones).
The product of its digits is 497664, while the sum is 48.
The square root of 2281298439 is about 47762.9400162930. The cubic root of 2281298439 is about 1316.4186743180.
The spelling of 2281298439 in words is "two billion, two hundred eighty-one million, two hundred ninety-eight thousand, four hundred thirty-nine".
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