Base | Representation |
---|---|
bin | 111001010101… |
… | …1010001100111 |
3 | 2002120021212020 |
4 | 1302223101213 |
5 | 30143433141 |
6 | 2552154223 |
7 | 513343233 |
oct | 162532147 |
9 | 62507766 |
10 | 30061671 |
11 | 15a72862 |
12 | a098973 |
13 | 62c7093 |
14 | 3dc75c3 |
15 | 298c266 |
hex | 1cab467 |
30061671 has 8 divisors (see below), whose sum is σ = 40109424. Its totient is φ = 20027520.
The previous prime is 30061657. The next prime is 30061679. The reversal of 30061671 is 17616003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30061671 - 25 = 30061639 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30061679) 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, 4165 + ... + 8801.
It is an arithmetic number, because the mean of its divisors is an integer number (5013678).
Almost surely, 230061671 is an apocalyptic number.
30061671 is a deficient number, since it is larger than the sum of its proper divisors (10047753).
30061671 is a wasteful number, since it uses less digits than its factorization.
30061671 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6801.
The product of its (nonzero) digits is 756, while the sum is 24.
The square root of 30061671 is about 5482.8524510514. The cubic root of 30061671 is about 310.9360227921.
Adding to 30061671 its reverse (17616003), we get a palindrome (47677674).
The spelling of 30061671 in words is "thirty million, sixty-one thousand, six hundred seventy-one".
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