Base | Representation |
---|---|
bin | 1111100111011… |
… | …10011110010100 |
3 | 100010111111111201 |
4 | 13303232132110 |
5 | 232014001322 |
6 | 20555442244 |
7 | 3150324550 |
oct | 763563624 |
9 | 303444451 |
10 | 131000212 |
11 | 67a45442 |
12 | 37a56384 |
13 | 211a8b25 |
14 | 13580860 |
15 | b779d27 |
hex | 7cee794 |
131000212 has 24 divisors (see below), whose sum is σ = 275791040. Its totient is φ = 53187840.
The previous prime is 131000197. The next prime is 131000227. The reversal of 131000212 is 212000131.
It is an interprime number because it is at equal distance from previous prime (131000197) and next prime (131000227).
It is a super-2 number, since 2×1310002122 = 34322111088089888, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122589 + ... + 123652.
Almost surely, 2131000212 is an apocalyptic number.
It is an amenable number.
131000212 is an abundant number, since it is smaller than the sum of its proper divisors (144790828).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131000212 is a wasteful number, since it uses less digits than its factorization.
131000212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 246271 (or 246269 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 10.
The square root of 131000212 is about 11445.5324035189. The cubic root of 131000212 is about 507.8755817815.
Adding to 131000212 its reverse (212000131), we get a palindrome (343000343).
The spelling of 131000212 in words is "one hundred thirty-one million, two hundred twelve", and thus it is an aban number.
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