Base | Representation |
---|---|
bin | 11100011010110011… |
… | …101000110100001010 |
3 | 2220202121102222120000 |
4 | 130122303220310022 |
5 | 444443203441320 |
6 | 22003531543430 |
7 | 2130115046124 |
oct | 343263506412 |
9 | 86677388500 |
10 | 30514515210 |
11 | 11a39714a13 |
12 | 5ab72bab76 |
13 | 2b53b5cc7a |
14 | 16968dc214 |
15 | bd8dacc90 |
hex | 71ace8d0a |
30514515210 has 160 divisors (see below), whose sum is σ = 83807488512. Its totient is φ = 7963712640.
The previous prime is 30514515197. The next prime is 30514515221. The reversal of 30514515210 is 1251541503.
30514515210 is a `hidden beast` number, since 305 + 145 + 1 + 5 + 210 = 666.
It is a super-2 number, since 2×305145152102 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
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 79 ways as a sum of consecutive naturals, for example, 26057925 + ... + 26059095.
Almost surely, 230514515210 is an apocalyptic number.
30514515210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 30514515210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41903744256).
30514515210 is an abundant number, since it is smaller than the sum of its proper divisors (53292973302).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30514515210 is a wasteful number, since it uses less digits than its factorization.
30514515210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1850 (or 1841 counting only the distinct ones).
The product of its (nonzero) digits is 3000, while the sum is 27.
The spelling of 30514515210 in words is "thirty billion, five hundred fourteen million, five hundred fifteen thousand, two hundred ten".
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