Base | Representation |
---|---|
bin | 11100101100011010… |
… | …010001000110100100 |
3 | 2221112012011202201111 |
4 | 130230122101012210 |
5 | 1001044310314442 |
6 | 22053122034404 |
7 | 2140332304213 |
oct | 345432210644 |
9 | 87465152644 |
10 | 30809854372 |
11 | 120803a5670 |
12 | 5b7a1a8a04 |
13 | 2ba00b847b |
14 | 16c3c1b07a |
15 | c04c9ab17 |
hex | 72c6911a4 |
30809854372 has 48 divisors (see below), whose sum is σ = 59119828992. Its totient is φ = 13933006880.
The previous prime is 30809854367. The next prime is 30809854373. The reversal of 30809854372 is 27345890803.
It is not an unprimeable number, because it can be changed into a prime (30809854373) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7463373 + ... + 7467499.
It is an arithmetic number, because the mean of its divisors is an integer number (1231663104).
Almost surely, 230809854372 is an apocalyptic number.
It is an amenable number.
30809854372 is a deficient number, since it is larger than the sum of its proper divisors (28309974620).
30809854372 is a wasteful number, since it uses less digits than its factorization.
30809854372 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4968 (or 4966 counting only the distinct ones).
The product of its (nonzero) digits is 1451520, while the sum is 49.
The spelling of 30809854372 in words is "thirty billion, eight hundred nine million, eight hundred fifty-four thousand, three hundred seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •