Base | Representation |
---|---|
bin | 11100011000110111… |
… | …001001000110111100 |
3 | 2220200100000220202102 |
4 | 130120313021012330 |
5 | 444411330120414 |
6 | 22000404244232 |
7 | 2126240462210 |
oct | 343067110674 |
9 | 86610026672 |
10 | 30481879484 |
11 | 11a22254241 |
12 | 5aa83a0678 |
13 | 2b4a1743a4 |
14 | 1692444940 |
15 | bd60b2ede |
hex | 718dc91bc |
30481879484 has 48 divisors (see below), whose sum is σ = 63643926528. Its totient is φ = 12489869568.
The previous prime is 30481879481. The next prime is 30481879499. The reversal of 30481879484 is 48497818403.
It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30481879481) 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, 1546757 + ... + 1566339.
It is an arithmetic number, because the mean of its divisors is an integer number (1325915136).
Almost surely, 230481879484 is an apocalyptic number.
It is an amenable number.
30481879484 is an abundant number, since it is smaller than the sum of its proper divisors (33162047044).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30481879484 is a wasteful number, since it uses less digits than its factorization.
30481879484 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22034 (or 22032 counting only the distinct ones).
The product of its (nonzero) digits is 6193152, while the sum is 56.
The spelling of 30481879484 in words is "thirty billion, four hundred eighty-one million, eight hundred seventy-nine thousand, four hundred eighty-four".
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