Base | Representation |
---|---|
bin | 111001100111… |
… | …1100001101010 |
3 | 2002211211112121 |
4 | 1303033201222 |
5 | 30213211104 |
6 | 2555301454 |
7 | 514532152 |
oct | 163174152 |
9 | 62754477 |
10 | 30210154 |
11 | 16064377 |
12 | a14a88a |
13 | 6349840 |
14 | 4025762 |
15 | 29bb254 |
hex | 1ccf86a |
30210154 has 8 divisors (see below), whose sum is σ = 48801060. Its totient is φ = 13943136.
The previous prime is 30210149. The next prime is 30210157. The reversal of 30210154 is 45101203.
It can be written as a sum of positive squares in 2 ways, for example, as 30195025 + 15129 = 5495^2 + 123^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (30210157) 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, 580939 + ... + 580990.
Almost surely, 230210154 is an apocalyptic number.
30210154 is a deficient number, since it is larger than the sum of its proper divisors (18590906).
30210154 is a wasteful number, since it uses less digits than its factorization.
30210154 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1161944.
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 30210154 is about 5496.3764427121. The cubic root of 30210154 is about 311.4471155606.
Adding to 30210154 its reverse (45101203), we get a palindrome (75311357).
The spelling of 30210154 in words is "thirty million, two hundred ten thousand, one hundred fifty-four".
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