Base | Representation |
---|---|
bin | 111001111100… |
… | …0111101010011 |
3 | 2010011110022222 |
4 | 1303320331103 |
5 | 30234123414 |
6 | 3003051255 |
7 | 516140006 |
oct | 163707523 |
9 | 63143288 |
10 | 30379859 |
11 | 1616a924 |
12 | a210b2b |
13 | 63a8b63 |
14 | 406b53d |
15 | 2a0168e |
hex | 1cf8f53 |
30379859 has 4 divisors (see below), whose sum is σ = 30394320. Its totient is φ = 30365400.
The previous prime is 30379847. The next prime is 30379871. The reversal of 30379859 is 95897303.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95897303 = 37 ⋅2591819.
It is an interprime number because it is at equal distance from previous prime (30379847) and next prime (30379871).
It is a cyclic number.
It is not a de Polignac number, because 30379859 - 220 = 29331283 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30379829) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3404 + ... + 8505.
It is an arithmetic number, because the mean of its divisors is an integer number (7598580).
Almost surely, 230379859 is an apocalyptic number.
30379859 is a deficient number, since it is larger than the sum of its proper divisors (14461).
30379859 is a wasteful number, since it uses less digits than its factorization.
30379859 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14460.
The product of its (nonzero) digits is 204120, while the sum is 44.
The square root of 30379859 is about 5511.7927210664. The cubic root of 30379859 is about 312.0292098173.
The spelling of 30379859 in words is "thirty million, three hundred seventy-nine thousand, eight hundred fifty-nine".
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