Base | Representation |
---|---|
bin | 111001110110… |
… | …1001001011101 |
3 | 2010001222222100 |
4 | 1303231021131 |
5 | 30231101420 |
6 | 3002035313 |
7 | 515545662 |
oct | 163551135 |
9 | 63058870 |
10 | 30331485 |
11 | 16137548 |
12 | a1a8b39 |
13 | 638cb32 |
14 | 4057a69 |
15 | 29e2190 |
hex | 1ced25d |
30331485 has 48 divisors (see below), whose sum is σ = 57507840. Its totient is φ = 14722560.
The previous prime is 30331471. The next prime is 30331493. The reversal of 30331485 is 58413303.
It is a happy number.
It is not a de Polignac number, because 30331485 - 211 = 30329437 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23076 + ... + 24354.
It is an arithmetic number, because the mean of its divisors is an integer number (1198080).
Almost surely, 230331485 is an apocalyptic number.
It is an amenable number.
30331485 is a deficient number, since it is larger than the sum of its proper divisors (27176355).
30331485 is a wasteful number, since it uses less digits than its factorization.
30331485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1338 (or 1335 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 27.
The square root of 30331485 is about 5507.4027453964. The cubic root of 30331485 is about 311.8635066172.
Adding to 30331485 its reverse (58413303), we get a palindrome (88744788).
The spelling of 30331485 in words is "thirty million, three hundred thirty-one thousand, four hundred eighty-five".
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