Base | Representation |
---|---|
bin | 11100000011011010… |
… | …010111000110101110 |
3 | 2212202020212210212220 |
4 | 130003122113012232 |
5 | 443142213404402 |
6 | 21500551140210 |
7 | 2114310613116 |
oct | 340332270656 |
9 | 85666783786 |
10 | 30122013102 |
11 | 11858100305 |
12 | 5a07974666 |
13 | 2ac07453bc |
14 | 165a72a046 |
15 | bb46cadbc |
hex | 7036971ae |
30122013102 has 16 divisors (see below), whose sum is σ = 62187382272. Its totient is φ = 9716778360.
The previous prime is 30122013101. The next prime is 30122013113. The reversal of 30122013102 is 20131022103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30122013101) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80972968 + ... + 80973339.
It is an arithmetic number, because the mean of its divisors is an integer number (3886711392).
Almost surely, 230122013102 is an apocalyptic number.
30122013102 is an abundant number, since it is smaller than the sum of its proper divisors (32065369170).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30122013102 is a wasteful number, since it uses less digits than its factorization.
30122013102 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 161946343.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 30122013102 its reverse (20131022103), we get a palindrome (50253035205).
Subtracting from 30122013102 its reverse (20131022103), we obtain a palindrome (9990990999).
The spelling of 30122013102 in words is "thirty billion, one hundred twenty-two million, thirteen thousand, one hundred two".
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