Base | Representation |
---|---|
bin | 111001101000… |
… | …0010000011100 |
3 | 2002211222122111 |
4 | 1303100100130 |
5 | 30213310043 |
6 | 2555323404 |
7 | 514543660 |
oct | 163202034 |
9 | 62758574 |
10 | 30213148 |
11 | 16066649 |
12 | a150564 |
13 | 634b004 |
14 | 40268a0 |
15 | 29bc09d |
hex | 1cd041c |
30213148 has 24 divisors (see below), whose sum is σ = 63981792. Its totient is φ = 12186624.
The previous prime is 30213143. The next prime is 30213163. The reversal of 30213148 is 84131203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30213143) 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, 31261 + ... + 32212.
It is an arithmetic number, because the mean of its divisors is an integer number (2665908).
Almost surely, 230213148 is an apocalyptic number.
It is an amenable number.
30213148 is an abundant number, since it is smaller than the sum of its proper divisors (33768644).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30213148 is a wasteful number, since it uses less digits than its factorization.
30213148 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63501 (or 63499 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 22.
The square root of 30213148 is about 5496.6487972218. The cubic root of 30213148 is about 311.4574039542.
The spelling of 30213148 in words is "thirty million, two hundred thirteen thousand, one hundred forty-eight".
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