Base | Representation |
---|---|
bin | 111010111000… |
… | …1101111001001 |
3 | 2011002120221120 |
4 | 1311301233021 |
5 | 30400441234 |
6 | 3021425453 |
7 | 523300215 |
oct | 165615711 |
9 | 64076846 |
10 | 30874569 |
11 | 16478580 |
12 | a40b289 |
13 | 652009b |
14 | 4159945 |
15 | 2a9d049 |
hex | 1d71bc9 |
30874569 has 8 divisors (see below), whose sum is σ = 44908512. Its totient is φ = 18711840.
The previous prime is 30874561. The next prime is 30874583. The reversal of 30874569 is 96547803.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30874569 - 23 = 30874561 is a prime.
It is a super-2 number, since 2×308745692 = 1906478021871522, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 30874569.
It is not an unprimeable number, because it can be changed into a prime (30874561) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467764 + ... + 467829.
It is an arithmetic number, because the mean of its divisors is an integer number (5613564).
Almost surely, 230874569 is an apocalyptic number.
It is an amenable number.
30874569 is a deficient number, since it is larger than the sum of its proper divisors (14033943).
30874569 is a wasteful number, since it uses less digits than its factorization.
30874569 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 935607.
The product of its (nonzero) digits is 181440, while the sum is 42.
The square root of 30874569 is about 5556.4889093743. The cubic root of 30874569 is about 313.7138080929.
The spelling of 30874569 in words is "thirty million, eight hundred seventy-four thousand, five hundred sixty-nine".
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