Base | Representation |
---|---|
bin | 111001010111… |
… | …1010000010001 |
3 | 2002121010012212 |
4 | 1302233100101 |
5 | 30144443334 |
6 | 2552401505 |
7 | 513441605 |
oct | 162572021 |
9 | 62533185 |
10 | 30077969 |
11 | 15a84029 |
12 | a0a6295 |
13 | 630161c |
14 | 3dcd505 |
15 | 2991ece |
hex | 1caf411 |
30077969 has 8 divisors (see below), whose sum is σ = 32434080. Its totient is φ = 27799200.
The previous prime is 30077963. The next prime is 30077989. The reversal of 30077969 is 96977003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30077969 - 28 = 30077713 is a prime.
It is a super-2 number, since 2×300779692 = 1809368438329922, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (41).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30077963) 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, 18527 + ... + 20084.
It is an arithmetic number, because the mean of its divisors is an integer number (4054260).
Almost surely, 230077969 is an apocalyptic number.
It is an amenable number.
30077969 is a deficient number, since it is larger than the sum of its proper divisors (2356111).
30077969 is a wasteful number, since it uses less digits than its factorization.
30077969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38671.
The product of its (nonzero) digits is 71442, while the sum is 41.
The square root of 30077969 is about 5484.3385198217. The cubic root of 30077969 is about 310.9922041863.
The spelling of 30077969 in words is "thirty million, seventy-seven thousand, nine hundred sixty-nine".
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