Base | Representation |
---|---|
bin | 11100000100100110… |
… | …101110100011100110 |
3 | 2212210122112212210100 |
4 | 130010212232203212 |
5 | 443212330011402 |
6 | 21502544204530 |
7 | 2114643021420 |
oct | 340446564346 |
9 | 85718485710 |
10 | 30142032102 |
11 | 11868433936 |
12 | 5a12609746 |
13 | 2ac4934370 |
14 | 165d25b810 |
15 | bb633271c |
hex | 7049ae8e6 |
30142032102 has 192 divisors, whose sum is σ = 81768960000. Its totient is φ = 7813200384.
The previous prime is 30142032097. The next prime is 30142032143. The reversal of 30142032102 is 20123024103.
30142032102 is a `hidden beast` number, since 30 + 1 + 420 + 3 + 210 + 2 = 666.
30142032102 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (18).
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 95 ways as a sum of consecutive naturals, for example, 29010099 + ... + 29011137.
It is an arithmetic number, because the mean of its divisors is an integer number (425880000).
Almost surely, 230142032102 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30142032102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40884480000).
30142032102 is an abundant number, since it is smaller than the sum of its proper divisors (51626927898).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30142032102 is a wasteful number, since it uses less digits than its factorization.
30142032102 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1355 (or 1352 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 30142032102 its reverse (20123024103), we get a palindrome (50265056205).
The spelling of 30142032102 in words is "thirty billion, one hundred forty-two million, thirty-two thousand, one hundred two".
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