Base | Representation |
---|---|
bin | 11100001111111000… |
… | …011001100011011000 |
3 | 2220021211112022121210 |
4 | 130033320121203120 |
5 | 444104242322130 |
6 | 21533423103120 |
7 | 2122431031311 |
oct | 341770314330 |
9 | 86254468553 |
10 | 30331214040 |
11 | 119551a8046 |
12 | 5a65a41aa0 |
13 | 2b24ba163a |
14 | 167a425608 |
15 | bc7c515b0 |
hex | 70fe198d8 |
30331214040 has 32 divisors (see below), whose sum is σ = 90993642480. Its totient is φ = 8088323712.
The previous prime is 30331213993. The next prime is 30331214063. The reversal of 30331214040 is 4041213303.
It is a junction number, because it is equal to n+sod(n) for n = 30331213998 and 30331214016.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126379939 + ... + 126380178.
Almost surely, 230331214040 is an apocalyptic number.
30331214040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30331214040 is an abundant number, since it is smaller than the sum of its proper divisors (60662428440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30331214040 is a wasteful number, since it uses less digits than its factorization.
30331214040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 252760131 (or 252760127 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 21.
Adding to 30331214040 its reverse (4041213303), we get a palindrome (34372427343).
The spelling of 30331214040 in words is "thirty billion, three hundred thirty-one million, two hundred fourteen thousand, forty".
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