Base | Representation |
---|---|
bin | 11100000011011110… |
… | …101010011110010100 |
3 | 2212202100000010002100 |
4 | 130003132222132110 |
5 | 443143011003022 |
6 | 21501031242100 |
7 | 2114323321356 |
oct | 340336523624 |
9 | 85670003070 |
10 | 30123141012 |
11 | 11858800768 |
12 | 5a08219330 |
13 | 2ac0a4b8c3 |
14 | 165a9410d6 |
15 | bb48501ac |
hex | 7037aa794 |
30123141012 has 36 divisors (see below), whose sum is σ = 76176856756. Its totient is φ = 10036794240.
The previous prime is 30123140959. The next prime is 30123141047. The reversal of 30123141012 is 21014132103.
It can be written as a sum of positive squares in 2 ways, for example, as 3604321296 + 26518819716 = 60036^2 + 162846^2 .
It is a tau number, because it is divible by the number of its divisors (36).
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 11 ways as a sum of consecutive naturals, for example, 90439 + ... + 261582.
Almost surely, 230123141012 is an apocalyptic number.
It is an amenable number.
30123141012 is an abundant number, since it is smaller than the sum of its proper divisors (46053715744).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30123141012 is a wasteful number, since it uses less digits than its factorization.
30123141012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 354408 (or 354403 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 30123141012 its reverse (21014132103), we get a palindrome (51137273115).
It can be divided in two parts, 301231 and 41012, that added together give a palindrome (342243).
The spelling of 30123141012 in words is "thirty billion, one hundred twenty-three million, one hundred forty-one thousand, twelve".
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