Base | Representation |
---|---|
bin | 111001011000… |
… | …1100001101011 |
3 | 2002121120222112 |
4 | 1302301201223 |
5 | 30200243100 |
6 | 2552512535 |
7 | 513511001 |
oct | 162614153 |
9 | 62546875 |
10 | 30087275 |
11 | 15a90019 |
12 | a0ab74b |
13 | 630592a |
14 | 3dd2a71 |
15 | 2994b35 |
hex | 1cb186b |
30087275 has 12 divisors (see below), whose sum is σ = 37509504. Its totient is φ = 23940000.
The previous prime is 30087269. The next prime is 30087287. The reversal of 30087275 is 57278003.
It is not a de Polignac number, because 30087275 - 24 = 30087259 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1625 + ... + 7925.
It is an arithmetic number, because the mean of its divisors is an integer number (3125792).
Almost surely, 230087275 is an apocalyptic number.
30087275 is a deficient number, since it is larger than the sum of its proper divisors (7422229).
30087275 is a wasteful number, since it uses less digits than its factorization.
30087275 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6502 (or 6497 counting only the distinct ones).
The product of its (nonzero) digits is 11760, while the sum is 32.
The square root of 30087275 is about 5485.1868701075. The cubic root of 30087275 is about 311.0242741157.
The spelling of 30087275 in words is "thirty million, eighty-seven thousand, two hundred seventy-five".
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