Base | Representation |
---|---|
bin | 11011111101000110… |
… | …011010011001101100 |
3 | 2212110212121220110000 |
4 | 123331012122121230 |
5 | 442433111323203 |
6 | 21442245344300 |
7 | 2111553546120 |
oct | 337506323154 |
9 | 85425556400 |
10 | 30016120428 |
11 | 118033545a8 |
12 | 5998408090 |
13 | 2aa481a708 |
14 | 164a643580 |
15 | baa2604a3 |
hex | 6fd19a66c |
30016120428 has 360 divisors, whose sum is σ = 96357728544. Its totient is φ = 7978176000.
The previous prime is 30016120427. The next prime is 30016120429. The reversal of 30016120428 is 82402161003.
30016120428 is a `hidden beast` number, since 3 + 0 + 0 + 1 + 612 + 0 + 42 + 8 = 666.
It is an interprime number because it is at equal distance from previous prime (30016120427) and next prime (30016120429).
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (30016120427) by changing a digit.
It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 49943328 + ... + 49943928.
Almost surely, 230016120428 is an apocalyptic number.
30016120428 is a gapful number since it is divisible by the number (38) 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 30016120428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48178864272).
30016120428 is an abundant number, since it is smaller than the sum of its proper divisors (66341608116).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30016120428 is a wasteful number, since it uses less digits than its factorization.
30016120428 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 723 (or 693 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
The spelling of 30016120428 in words is "thirty billion, sixteen million, one hundred twenty thousand, four hundred twenty-eight".
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