Base | Representation |
---|---|
bin | 111001101010… |
… | …1101101101100 |
3 | 2002220010022100 |
4 | 1303111231230 |
5 | 30220014000 |
6 | 3000015100 |
7 | 514666101 |
oct | 163255554 |
9 | 62803270 |
10 | 30235500 |
11 | 16081419 |
12 | a161490 |
13 | 6358239 |
14 | 4030aa8 |
15 | 29c3a00 |
hex | 1cd5b6c |
30235500 has 72 divisors (see below), whose sum is σ = 95397120. Its totient is φ = 8061600.
The previous prime is 30235481. The next prime is 30235519. The reversal of 30235500 is 553203.
It is an interprime number because it is at equal distance from previous prime (30235481) and next prime (30235519).
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 23 ways as a sum of consecutive naturals, for example, 1141 + ... + 7859.
It is an arithmetic number, because the mean of its divisors is an integer number (1324960).
Almost surely, 230235500 is an apocalyptic number.
30235500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30235500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47698560).
30235500 is an abundant number, since it is smaller than the sum of its proper divisors (65161620).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30235500 is a wasteful number, since it uses less digits than its factorization.
30235500 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6744 (or 6729 counting only the distinct ones).
The product of its (nonzero) digits is 450, while the sum is 18.
The square root of 30235500 is about 5498.6816601800. The cubic root of 30235500 is about 311.5341914929.
Adding to 30235500 its reverse (553203), we get a palindrome (30788703).
The spelling of 30235500 in words is "thirty million, two hundred thirty-five thousand, five hundred".
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