Base | Representation |
---|---|
bin | 11011111101110110… |
… | …100010110100111100 |
3 | 2212111202100221022000 |
4 | 123331312202310330 |
5 | 442444324102402 |
6 | 21443420022300 |
7 | 2112066026451 |
oct | 337566426474 |
9 | 85452327260 |
10 | 30028737852 |
11 | 1180a492223 |
12 | 59a0691990 |
13 | 2aa7317749 |
14 | 164c1a9828 |
15 | bab403c1c |
hex | 6fdda2d3c |
30028737852 has 96 divisors (see below), whose sum is σ = 79841879040. Its totient is φ = 9755562240.
The previous prime is 30028737821. The next prime is 30028737913. The reversal of 30028737852 is 25873782003.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 30028737798 and 30028737807.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1211043 + ... + 1235589.
It is an arithmetic number, because the mean of its divisors is an integer number (831686240).
Almost surely, 230028737852 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30028737852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39920939520).
30028737852 is an abundant number, since it is smaller than the sum of its proper divisors (49813141188).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30028737852 is a wasteful number, since it uses less digits than its factorization.
30028737852 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24848 (or 24840 counting only the distinct ones).
The product of its (nonzero) digits is 564480, while the sum is 45.
The spelling of 30028737852 in words is "thirty billion, twenty-eight million, seven hundred thirty-seven thousand, eight hundred fifty-two".
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