Base | Representation |
---|---|
bin | 111001110100… |
… | …0011111011110 |
3 | 2010001000211000 |
4 | 1303220133132 |
5 | 30224444124 |
6 | 3001411130 |
7 | 515436246 |
oct | 163503736 |
9 | 63030730 |
10 | 30312414 |
11 | 16124190 |
12 | a199aa6 |
13 | 6384252 |
14 | 4050b26 |
15 | 29db6c9 |
hex | 1ce87de |
30312414 has 32 divisors (see below), whose sum is σ = 73486080. Its totient is φ = 9185400.
The previous prime is 30312409. The next prime is 30312437. The reversal of 30312414 is 41421303.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24922 + ... + 26109.
It is an arithmetic number, because the mean of its divisors is an integer number (2296440).
Almost surely, 230312414 is an apocalyptic number.
30312414 is an abundant number, since it is smaller than the sum of its proper divisors (43173666).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30312414 is a wasteful number, since it uses less digits than its factorization.
30312414 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51053 (or 51047 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 30312414 is about 5505.6710762631. The cubic root of 30312414 is about 311.7981312503.
Adding to 30312414 its reverse (41421303), we get a palindrome (71733717).
Subtracting 30312414 from its reverse (41421303), we obtain a square (11108889 = 33332).
It can be divided in two parts, 3031 and 2414, that added together give a palindrome (5445).
The spelling of 30312414 in words is "thirty million, three hundred twelve thousand, four hundred fourteen".
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