Base | Representation |
---|---|
bin | 111001010100… |
… | …0101110110111 |
3 | 2002112202120110 |
4 | 1302220232313 |
5 | 30143120010 |
6 | 2552034103 |
7 | 513300663 |
oct | 162505667 |
9 | 62482513 |
10 | 30051255 |
11 | 15a65a53 |
12 | a092933 |
13 | 62c2410 |
14 | 3dc38a3 |
15 | 2989120 |
hex | 1ca8bb7 |
30051255 has 32 divisors (see below), whose sum is σ = 54512640. Its totient is φ = 14014080.
The previous prime is 30051233. The next prime is 30051299. The reversal of 30051255 is 55215003.
It is not a de Polignac number, because 30051255 - 27 = 30051127 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351 + ... + 7760.
It is an arithmetic number, because the mean of its divisors is an integer number (1703520).
Almost surely, 230051255 is an apocalyptic number.
30051255 is a deficient number, since it is larger than the sum of its proper divisors (24461385).
30051255 is a wasteful number, since it uses less digits than its factorization.
30051255 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8151.
The product of its (nonzero) digits is 750, while the sum is 21.
The square root of 30051255 is about 5481.9024982209. The cubic root of 30051255 is about 310.9001068052.
Adding to 30051255 its reverse (55215003), we get a palindrome (85266258).
The spelling of 30051255 in words is "thirty million, fifty-one thousand, two hundred fifty-five".
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