Base | Representation |
---|---|
bin | 111001010000… |
… | …0011000111101 |
3 | 2002111000200220 |
4 | 1302200120331 |
5 | 30141021320 |
6 | 2551211553 |
7 | 513066240 |
oct | 162403075 |
9 | 62430626 |
10 | 30017085 |
11 | 15a4230a |
12 | a076bb9 |
13 | 62ac9b7 |
14 | 3db5257 |
15 | 297de40 |
hex | 1ca063d |
30017085 has 32 divisors (see below), whose sum is σ = 55345152. Its totient is φ = 13608000.
The previous prime is 30017069. The next prime is 30017107. The reversal of 30017085 is 58071003.
It is not a de Polignac number, because 30017085 - 24 = 30017069 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12210 + ... + 14460.
It is an arithmetic number, because the mean of its divisors is an integer number (1729536).
Almost surely, 230017085 is an apocalyptic number.
30017085 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30017085 is a deficient number, since it is larger than the sum of its proper divisors (25328067).
30017085 is a wasteful number, since it uses less digits than its factorization.
30017085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2393.
The product of its (nonzero) digits is 840, while the sum is 24.
The square root of 30017085 is about 5478.7849930436. The cubic root of 30017085 is about 310.7822250319.
Adding to 30017085 its reverse (58071003), we get a palindrome (88088088).
The spelling of 30017085 in words is "thirty million, seventeen thousand, eighty-five".
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