Base | Representation |
---|---|
bin | 11100011010010011… |
… | …001100000000000100 |
3 | 2220202000102210122122 |
4 | 130122103030000010 |
5 | 444434014233310 |
6 | 22003025345112 |
7 | 2126652536345 |
oct | 343223140004 |
9 | 86660383578 |
10 | 30506008580 |
11 | 11a34934843 |
12 | 5ab4498198 |
13 | 2b52172068 |
14 | 16957260cc |
15 | bd827c555 |
hex | 71a4cc004 |
30506008580 has 24 divisors (see below), whose sum is σ = 65552448192. Its totient is φ = 11918626272.
The previous prime is 30506008579. The next prime is 30506008613. The reversal of 30506008580 is 8580060503.
It is a self number, because there is not a number n which added to its sum of digits gives 30506008580.
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, 17735192 + ... + 17736911.
It is an arithmetic number, because the mean of its divisors is an integer number (2731352008).
Almost surely, 230506008580 is an apocalyptic number.
It is an amenable number.
30506008580 is an abundant number, since it is smaller than the sum of its proper divisors (35046439612).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30506008580 is a wasteful number, since it uses less digits than its factorization.
30506008580 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35472155 (or 35472153 counting only the distinct ones).
The product of its (nonzero) digits is 28800, while the sum is 35.
The spelling of 30506008580 in words is "thirty billion, five hundred six million, eight thousand, five hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.111 sec. • engine limits •