Base | Representation |
---|---|
bin | 111011101101100100… |
… | …0010000001010000000 |
3 | 110020222121011112101000 |
4 | 1313123020100022000 |
5 | 4100103442101331 |
6 | 134524103012000 |
7 | 12156445426125 |
oct | 1673310201200 |
9 | 406877145330 |
10 | 128230425216 |
11 | 4a422806433 |
12 | 20a2813a000 |
13 | c1273a816a |
14 | 62c647274c |
15 | 350781a0e6 |
hex | 1ddb210280 |
128230425216 has 256 divisors, whose sum is σ = 397742716800. Its totient is φ = 40619335680.
The previous prime is 128230425209. The next prime is 128230425299. The reversal of 128230425216 is 612524032821.
128230425216 is a `hidden beast` number, since 12 + 8 + 2 + 3 + 0 + 425 + 216 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
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, 5486836 + ... + 5510156.
Almost surely, 2128230425216 is an apocalyptic number.
128230425216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 128230425216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198871358400).
128230425216 is an abundant number, since it is smaller than the sum of its proper divisors (269512291584).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128230425216 is a wasteful number, since it uses less digits than its factorization.
128230425216 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23424 (or 23406 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 36.
The spelling of 128230425216 in words is "one hundred twenty-eight billion, two hundred thirty million, four hundred twenty-five thousand, two hundred sixteen".
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