Base | Representation |
---|---|
bin | 111001111001… |
… | …1101010000000 |
3 | 2010010100112201 |
4 | 1303303222000 |
5 | 30232430034 |
6 | 3002402544 |
7 | 516016465 |
oct | 163635200 |
9 | 63110481 |
10 | 30358144 |
11 | 16155583 |
12 | a200454 |
13 | 639bccb |
14 | 406366c |
15 | 29ea014 |
hex | 1cf3a80 |
30358144 has 16 divisors (see below), whose sum is σ = 60479370. Its totient is φ = 15179008.
The previous prime is 30358127. The next prime is 30358177. The reversal of 30358144 is 44185303.
It can be written as a sum of positive squares in only one way, i.e., 15303744 + 15054400 = 3912^2 + 3880^2 .
It is a tau number, because it is divible by the number of its divisors (16).
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118459 + ... + 118714.
Almost surely, 230358144 is an apocalyptic number.
It is an amenable number.
30358144 is a deficient number, since it is larger than the sum of its proper divisors (30121226).
30358144 is an equidigital number, since it uses as much as digits as its factorization.
30358144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 237187 (or 237175 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 28.
The square root of 30358144 is about 5509.8225016783. The cubic root of 30358144 is about 311.9548477285.
The spelling of 30358144 in words is "thirty million, three hundred fifty-eight thousand, one hundred forty-four".
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