Base | Representation |
---|---|
bin | 111101000110011100… |
… | …1111111001011101000 |
3 | 110112200110110120010022 |
4 | 1322030321333023220 |
5 | 4122211013430440 |
6 | 140140050340012 |
7 | 12323403232214 |
oct | 1721471771350 |
9 | 415613416108 |
10 | 131213030120 |
11 | 50713375667 |
12 | 2151ab8a608 |
13 | c4b12abb33 |
14 | 64ca62b944 |
15 | 362e5c4cb5 |
hex | 1e8ce7f2e8 |
131213030120 has 16 divisors (see below), whose sum is σ = 295229317860. Its totient is φ = 52485212032.
The previous prime is 131213030093. The next prime is 131213030161. The reversal of 131213030120 is 21030312131.
It can be written as a sum of positive squares in 2 ways, for example, as 118486031524 + 12726998596 = 344218^2 + 112814^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640162837 + ... + 1640162916.
Almost surely, 2131213030120 is an apocalyptic number.
131213030120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
131213030120 is an abundant number, since it is smaller than the sum of its proper divisors (164016287740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131213030120 is a wasteful number, since it uses less digits than its factorization.
131213030120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3280325764 (or 3280325760 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 131213030120 its reverse (21030312131), we get a palindrome (152243342251).
The spelling of 131213030120 in words is "one hundred thirty-one billion, two hundred thirteen million, thirty thousand, one hundred twenty".
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