Base | Representation |
---|---|
bin | 111001111010… |
… | …0011101010110 |
3 | 2010010112001102 |
4 | 1303310131112 |
5 | 30233031210 |
6 | 3002430102 |
7 | 516032201 |
oct | 163643526 |
9 | 63115042 |
10 | 30361430 |
11 | 16157aa0 |
12 | a202332 |
13 | 63a0658 |
14 | 4064938 |
15 | 29eaea5 |
hex | 1cf4756 |
30361430 has 64 divisors (see below), whose sum is σ = 63936000. Its totient is φ = 10264320.
The previous prime is 30361427. The next prime is 30361433. The reversal of 30361430 is 3416303.
It is an interprime number because it is at equal distance from previous prime (30361427) and next prime (30361433).
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30361433) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152471 + ... + 152669.
It is an arithmetic number, because the mean of its divisors is an integer number (999000).
Almost surely, 230361430 is an apocalyptic number.
30361430 is an abundant number, since it is smaller than the sum of its proper divisors (33574570).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30361430 is a wasteful number, since it uses less digits than its factorization.
30361430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 309.
The product of its (nonzero) digits is 648, while the sum is 20.
The square root of 30361430 is about 5510.1206883334. The cubic root of 30361430 is about 311.9661027715.
Adding to 30361430 its reverse (3416303), we get a palindrome (33777733).
The spelling of 30361430 in words is "thirty million, three hundred sixty-one thousand, four hundred thirty".
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