Base | Representation |
---|---|
bin | 100111001111001010… |
… | …000000010011001000 |
3 | 11000202010102112001201 |
4 | 213033022000103020 |
5 | 1142240313241130 |
6 | 31204312353544 |
7 | 3021011615350 |
oct | 471712002310 |
9 | 130663375051 |
10 | 42130212040 |
11 | 1695a451964 |
12 | 81b93a58b4 |
13 | 3c854baa67 |
14 | 207947db60 |
15 | 1168a1abca |
hex | 9cf2804c8 |
42130212040 has 32 divisors (see below), whose sum is σ = 108334831680. Its totient is φ = 14444644032.
The previous prime is 42130212037. The next prime is 42130212053. The reversal of 42130212040 is 4021203124.
It is a junction number, because it is equal to n+sod(n) for n = 42130211999 and 42130212017.
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, 75232242 + ... + 75232801.
It is an arithmetic number, because the mean of its divisors is an integer number (3385463490).
Almost surely, 242130212040 is an apocalyptic number.
42130212040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
42130212040 is an abundant number, since it is smaller than the sum of its proper divisors (66204619640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42130212040 is a wasteful number, since it uses less digits than its factorization.
42130212040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 150465061 (or 150465057 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 19.
Adding to 42130212040 its reverse (4021203124), we get a palindrome (46151415164).
The spelling of 42130212040 in words is "forty-two billion, one hundred thirty million, two hundred twelve thousand, forty".
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