Base | Representation |
---|---|
bin | 111001011010… |
… | …1100101001000 |
3 | 2002122102202112 |
4 | 1302311211020 |
5 | 30201311010 |
6 | 2553121452 |
7 | 513610262 |
oct | 162654510 |
9 | 62572675 |
10 | 30103880 |
11 | 15aa1544 |
12 | a0b9288 |
13 | 6310361 |
14 | 3dd8b32 |
15 | 2999a05 |
hex | 1cb5948 |
30103880 has 32 divisors (see below), whose sum is σ = 67910400. Its totient is φ = 12010176.
The previous prime is 30103877. The next prime is 30103891. The reversal of 30103880 is 8830103.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20201 + ... + 21639.
It is an arithmetic number, because the mean of its divisors is an integer number (2122200).
Almost surely, 230103880 is an apocalyptic number.
It is an amenable number.
30103880 is an abundant number, since it is smaller than the sum of its proper divisors (37806520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30103880 is a wasteful number, since it uses less digits than its factorization.
30103880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1973 (or 1969 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 23.
The square root of 30103880 is about 5486.7002834126. The cubic root of 30103880 is about 311.0814811162.
Adding to 30103880 its reverse (8830103), we get a palindrome (38933983).
The spelling of 30103880 in words is "thirty million, one hundred three thousand, eight hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •