Base | Representation |
---|---|
bin | 111010111001… |
… | …1010001100110 |
3 | 2011002220120221 |
4 | 1311303101212 |
5 | 30401141440 |
6 | 3021514554 |
7 | 523324456 |
oct | 165632146 |
9 | 64086527 |
10 | 30880870 |
11 | 16482289 |
12 | a412a5a |
13 | 6522c07 |
14 | 415bd66 |
15 | 2a9ed4a |
hex | 1d73466 |
30880870 has 8 divisors (see below), whose sum is σ = 55585584. Its totient is φ = 12352344.
The previous prime is 30880849. The next prime is 30880877. The reversal of 30880870 is 7808803.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30880877) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1544034 + ... + 1544053.
It is an arithmetic number, because the mean of its divisors is an integer number (6948198).
Almost surely, 230880870 is an apocalyptic number.
30880870 is a deficient number, since it is larger than the sum of its proper divisors (24704714).
30880870 is a wasteful number, since it uses less digits than its factorization.
30880870 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3088094.
The product of its (nonzero) digits is 10752, while the sum is 34.
The square root of 30880870 is about 5557.0558751915. The cubic root of 30880870 is about 313.7351479454.
The spelling of 30880870 in words is "thirty million, eight hundred eighty thousand, eight hundred seventy".
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