Base | Representation |
---|---|
bin | 111001011010… |
… | …1001100010111 |
3 | 2002122100120211 |
4 | 1302311030113 |
5 | 30201233140 |
6 | 2553110251 |
7 | 513602536 |
oct | 162651427 |
9 | 62570524 |
10 | 30102295 |
11 | 15aa0333 |
12 | a0b8387 |
13 | 630c712 |
14 | 3dd831d |
15 | 29992ea |
hex | 1cb5317 |
30102295 has 4 divisors (see below), whose sum is σ = 36122760. Its totient is φ = 24081832.
The previous prime is 30102277. The next prime is 30102299. The reversal of 30102295 is 59220103.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59220103 = 223 ⋅265561.
It is a cyclic number.
It is not a de Polignac number, because 30102295 - 25 = 30102263 is a prime.
It is a super-3 number, since 3×301022953 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30102299) 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, 3010225 + ... + 3010234.
It is an arithmetic number, because the mean of its divisors is an integer number (9030690).
Almost surely, 230102295 is an apocalyptic number.
30102295 is a deficient number, since it is larger than the sum of its proper divisors (6020465).
30102295 is an equidigital number, since it uses as much as digits as its factorization.
30102295 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6020464.
The product of its (nonzero) digits is 540, while the sum is 22.
The square root of 30102295 is about 5486.5558413271. Note that the first 3 decimals coincide. The cubic root of 30102295 is about 311.0760214345.
Adding to 30102295 its reverse (59220103), we get a palindrome (89322398).
The spelling of 30102295 in words is "thirty million, one hundred two thousand, two hundred ninety-five".
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