Base | Representation |
---|---|
bin | 111010001001… |
… | …1100100010111 |
3 | 2010100222211212 |
4 | 1310103210113 |
5 | 30301120410 |
6 | 3005252035 |
7 | 520102535 |
oct | 164234427 |
9 | 63328755 |
10 | 30488855 |
11 | 16234801 |
12 | a26401b |
13 | 6416657 |
14 | 4099155 |
15 | 2a23b05 |
hex | 1d13917 |
30488855 has 8 divisors (see below), whose sum is σ = 36723264. Its totient is φ = 24300000.
The previous prime is 30488813. The next prime is 30488879. The reversal of 30488855 is 55888403.
30488855 is nontrivially palindromic in base 2.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30488855 - 26 = 30488791 is a prime.
It is a super-2 number, since 2×304888552 = 1859140558422050, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9896 + ... + 12605.
It is an arithmetic number, because the mean of its divisors is an integer number (4590408).
Almost surely, 230488855 is an apocalyptic number.
30488855 is a deficient number, since it is larger than the sum of its proper divisors (6234409).
30488855 is a wasteful number, since it uses less digits than its factorization.
30488855 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22777.
The product of its (nonzero) digits is 153600, while the sum is 41.
The square root of 30488855 is about 5521.6713955106. The cubic root of 30488855 is about 312.4019276250.
The spelling of 30488855 in words is "thirty million, four hundred eighty-eight thousand, eight hundred fifty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •