Base | Representation |
---|---|
bin | 111001110000… |
… | …1110010010111 |
3 | 2002222122010212 |
4 | 1303201302113 |
5 | 30223104301 |
6 | 3001040035 |
7 | 515263214 |
oct | 163416227 |
9 | 62878125 |
10 | 30284951 |
11 | 16105594 |
12 | a18601b |
13 | 63748b8 |
14 | 4044b0b |
15 | 29d34bb |
hex | 1ce1c97 |
30284951 has 8 divisors (see below), whose sum is σ = 31917024. Its totient is φ = 28679200.
The previous prime is 30284927. The next prime is 30284953. The reversal of 30284951 is 15948203.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30284951 - 210 = 30283927 is a prime.
It is a super-3 number, since 3×302849513 (a number of 23 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30284953) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4196 + ... + 8841.
It is an arithmetic number, because the mean of its divisors is an integer number (3989628).
Almost surely, 230284951 is an apocalyptic number.
30284951 is a deficient number, since it is larger than the sum of its proper divisors (1632073).
30284951 is a wasteful number, since it uses less digits than its factorization.
30284951 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13161.
The product of its (nonzero) digits is 8640, while the sum is 32.
The square root of 30284951 is about 5503.1764463808. The cubic root of 30284951 is about 311.7039399247.
The spelling of 30284951 in words is "thirty million, two hundred eighty-four thousand, nine hundred fifty-one".
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