Base | Representation |
---|---|
bin | 1111100111011… |
… | …10101001001111 |
3 | 100010111112110121 |
4 | 13303232221033 |
5 | 232014012121 |
6 | 20555445411 |
7 | 3150326566 |
oct | 763565117 |
9 | 303445417 |
10 | 131000911 |
11 | 67a45a18 |
12 | 37a56867 |
13 | 211a9242 |
14 | 13580bdd |
15 | b77a141 |
hex | 7ceea4f |
131000911 has 2 divisors, whose sum is σ = 131000912. Its totient is φ = 131000910.
The previous prime is 131000897. The next prime is 131000921. The reversal of 131000911 is 119000131.
It is a happy number.
It is a strong prime.
It is an emirp because it is prime and its reverse (119000131) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 131000911 - 29 = 131000399 is a prime.
It is a super-2 number, since 2×1310009112 = 34322477365659842, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131000921) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65500455 + 65500456.
It is an arithmetic number, because the mean of its divisors is an integer number (65500456).
Almost surely, 2131000911 is an apocalyptic number.
131000911 is a deficient number, since it is larger than the sum of its proper divisors (1).
131000911 is an equidigital number, since it uses as much as digits as its factorization.
131000911 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 27, while the sum is 16.
The square root of 131000911 is about 11445.5629394102. The cubic root of 131000911 is about 507.8764850991.
The spelling of 131000911 in words is "one hundred thirty-one million, nine hundred eleven", and thus it is an aban number.
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