Base | Representation |
---|---|
bin | 1101101100111011100011… |
… | …00100101011101101111110 |
3 | 10221200111122020101202212100 |
4 | 12312131301210223231332 |
5 | 12422131443330214402 |
6 | 144030011533045530 |
7 | 6226620525610362 |
oct | 666356144535576 |
9 | 127614566352770 |
10 | 30131101023102 |
11 | 966758a014132 |
12 | 34677389268a6 |
13 | 13a7473462331 |
14 | 7624d2b7d2a2 |
15 | 373ba462671c |
hex | 1b677192bb7e |
30131101023102 has 96 divisors (see below), whose sum is σ = 66716751404160. Its totient is φ = 9826154841600.
The previous prime is 30131101023091. The next prime is 30131101023139. The reversal of 30131101023102 is 20132010113103.
30131101023102 is a `hidden beast` number, since 30 + 1 + 311 + 0 + 10 + 2 + 310 + 2 = 666.
It is a super-2 number, since 2×301311010231022 (a number of 28 digits) contains 22 as substring.
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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72518298 + ... + 72932610.
It is an arithmetic number, because the mean of its divisors is an integer number (694966160460).
Almost surely, 230131101023102 is an apocalyptic number.
30131101023102 is an abundant number, since it is smaller than the sum of its proper divisors (36585650381058).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30131101023102 is a wasteful number, since it uses less digits than its factorization.
30131101023102 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 414898 (or 414895 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 30131101023102 its reverse (20132010113103), we get a palindrome (50263111136205).
Subtracting from 30131101023102 its reverse (20132010113103), we obtain a palindrome (9999090909999).
The spelling of 30131101023102 in words is "thirty trillion, one hundred thirty-one billion, one hundred one million, twenty-three thousand, one hundred two".
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