Base | Representation |
---|---|
bin | 111001111010… |
… | …1110100001110 |
3 | 2010010210200100 |
4 | 1303311310032 |
5 | 30233220430 |
6 | 3002511530 |
7 | 516054333 |
oct | 163656416 |
9 | 63123610 |
10 | 30366990 |
11 | 16161195 |
12 | a2055a6 |
13 | 63a3044 |
14 | 406698a |
15 | 29ec960 |
hex | 1cf5d0e |
30366990 has 24 divisors (see below), whose sum is σ = 78954408. Its totient is φ = 8097840.
The previous prime is 30366989. The next prime is 30366991. The reversal of 30366990 is 9966303.
It is an interprime number because it is at equal distance from previous prime (30366989) and next prime (30366991).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30366991) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168616 + ... + 168795.
It is an arithmetic number, because the mean of its divisors is an integer number (3289767).
Almost surely, 230366990 is an apocalyptic number.
30366990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30366990 is an abundant number, since it is smaller than the sum of its proper divisors (48587418).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30366990 is a wasteful number, since it uses less digits than its factorization.
30366990 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 337424 (or 337421 counting only the distinct ones).
The product of its (nonzero) digits is 26244, while the sum is 36.
The square root of 30366990 is about 5510.6251913916. The cubic root of 30366990 is about 311.9851447562.
The spelling of 30366990 in words is "thirty million, three hundred sixty-six thousand, nine hundred ninety".
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