Base | Representation |
---|---|
bin | 11100000101100001… |
… | …011101100001111100 |
3 | 2212211201112010011122 |
4 | 130011201131201330 |
5 | 443230300210420 |
6 | 21504254210112 |
7 | 2115220626056 |
oct | 340541354174 |
9 | 85751463148 |
10 | 30157428860 |
11 | 1187609a729 |
12 | 5a177b3938 |
13 | 2ac7b95480 |
14 | 16613088d6 |
15 | bb7874725 |
hex | 70585d87c |
30157428860 has 48 divisors (see below), whose sum is σ = 70554002400. Its totient is φ = 10751080704.
The previous prime is 30157428839. The next prime is 30157428871. The reversal of 30157428860 is 6882475103.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1992290 + ... + 2007369.
It is an arithmetic number, because the mean of its divisors is an integer number (1469875050).
Almost surely, 230157428860 is an apocalyptic number.
It is an amenable number.
30157428860 is an abundant number, since it is smaller than the sum of its proper divisors (40396573540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30157428860 is a wasteful number, since it uses less digits than its factorization.
30157428860 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3999710 (or 3999708 counting only the distinct ones).
The product of its (nonzero) digits is 322560, while the sum is 44.
The spelling of 30157428860 in words is "thirty billion, one hundred fifty-seven million, four hundred twenty-eight thousand, eight hundred sixty".
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