Base | Representation |
---|---|
bin | 10010011110100… |
… | …011100110010011 |
3 | 210121022122002012 |
4 | 102132203212103 |
5 | 1113330000034 |
6 | 50432213135 |
7 | 10452646100 |
oct | 2236434623 |
9 | 717278065 |
10 | 310000019 |
11 | 149a9466a |
12 | 8799a1ab |
13 | 4c2bc684 |
14 | 2d257aa7 |
15 | 1c336cce |
hex | 127a3993 |
310000019 has 12 divisors (see below), whose sum is σ = 363810024. Its totient is φ = 263358144.
The previous prime is 309999997. The next prime is 310000037. The reversal of 310000019 is 910000013.
It is not a de Polignac number, because 310000019 - 228 = 41564563 is a prime.
It is a super-2 number, since 2×3100000192 = 192200023560000722, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 309999958 and 310000012.
It is not an unprimeable number, because it can be changed into a prime (310000099) 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, 22457 + ... + 33530.
It is an arithmetic number, because the mean of its divisors is an integer number (30317502).
Almost surely, 2310000019 is an apocalyptic number.
310000019 is a deficient number, since it is larger than the sum of its proper divisors (53810005).
310000019 is a wasteful number, since it uses less digits than its factorization.
310000019 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 56114 (or 56107 counting only the distinct ones).
The product of its (nonzero) digits is 27, while the sum is 14.
The square root of 310000019 is about 17606.8174012227. The cubic root of 310000019 is about 676.7899590376.
The spelling of 310000019 in words is "three hundred ten million, nineteen", and thus it is an aban number.
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