Base | Representation |
---|---|
bin | 111010111100… |
… | …1011111110111 |
3 | 2011011012112222 |
4 | 1311321133313 |
5 | 30403000414 |
6 | 3022232555 |
7 | 523462001 |
oct | 165713767 |
9 | 64135488 |
10 | 30906359 |
11 | 1649a450 |
12 | a42575b |
13 | 65316b3 |
14 | 4167371 |
15 | 2aa768e |
hex | 1d797f7 |
30906359 has 8 divisors (see below), whose sum is σ = 34627728. Its totient is φ = 27336960.
The previous prime is 30906341. The next prime is 30906397. The reversal of 30906359 is 95360903.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30906359 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30906329) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37562 + ... + 38375.
It is an arithmetic number, because the mean of its divisors is an integer number (4328466).
Almost surely, 230906359 is an apocalyptic number.
30906359 is a deficient number, since it is larger than the sum of its proper divisors (3721369).
30906359 is a wasteful number, since it uses less digits than its factorization.
30906359 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 75985.
The product of its (nonzero) digits is 21870, while the sum is 35.
The square root of 30906359 is about 5559.3487927994. The cubic root of 30906359 is about 313.8214429668.
It can be divided in two parts, 3090 and 6359, that added together give a palindrome (9449).
The spelling of 30906359 in words is "thirty million, nine hundred six thousand, three hundred fifty-nine".
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