Base | Representation |
---|---|
bin | 111010010000… |
… | …1010100111110 |
3 | 2010110212011020 |
4 | 1310201110332 |
5 | 30304421324 |
6 | 3010405010 |
7 | 520426050 |
oct | 164412476 |
9 | 63425136 |
10 | 30545214 |
11 | 16273087 |
12 | a290766 |
13 | 64361bb |
14 | 40b18d0 |
15 | 2a35679 |
hex | 1d2153e |
30545214 has 16 divisors (see below), whose sum is σ = 69817728. Its totient is φ = 8727192.
The previous prime is 30545197. The next prime is 30545231. The reversal of 30545214 is 41254503.
It is an interprime number because it is at equal distance from previous prime (30545197) and next prime (30545231).
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363592 + ... + 363675.
It is an arithmetic number, because the mean of its divisors is an integer number (4363608).
Almost surely, 230545214 is an apocalyptic number.
30545214 is an abundant number, since it is smaller than the sum of its proper divisors (39272514).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30545214 is a wasteful number, since it uses less digits than its factorization.
30545214 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 727279.
The product of its (nonzero) digits is 2400, while the sum is 24.
The square root of 30545214 is about 5526.7724758669. The cubic root of 30545214 is about 312.5943019933.
Adding to 30545214 its reverse (41254503), we get a palindrome (71799717).
The spelling of 30545214 in words is "thirty million, five hundred forty-five thousand, two hundred fourteen".
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