Base | Representation |
---|---|
bin | 111001111000… |
… | …1110111110111 |
3 | 2010002222112011 |
4 | 1303301313313 |
5 | 30232211324 |
6 | 3002305051 |
7 | 515656261 |
oct | 163616767 |
9 | 63088464 |
10 | 30350839 |
11 | 16150042 |
12 | a1b8187 |
13 | 639889c |
14 | 4060b31 |
15 | 29e7c94 |
hex | 1cf1df7 |
30350839 has 6 divisors (see below), whose sum is σ = 30877520. Its totient is φ = 29832996.
The previous prime is 30350833. The next prime is 30350851. The reversal of 30350839 is 93805303.
It is not a de Polignac number, because 30350839 - 27 = 30350711 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30350839.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30350833) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 879 + ... + 7840.
Almost surely, 230350839 is an apocalyptic number.
30350839 is a deficient number, since it is larger than the sum of its proper divisors (526681).
30350839 is an frugal number, since it uses more digits than its factorization.
30350839 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8837 (or 8778 counting only the distinct ones).
The product of its (nonzero) digits is 9720, while the sum is 31.
The square root of 30350839 is about 5509.1595547778. The cubic root of 30350839 is about 311.9298240976.
The spelling of 30350839 in words is "thirty million, three hundred fifty thousand, eight hundred thirty-nine".
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