Base | Representation |
---|---|
bin | 1111101000001… |
… | …10000110101111 |
3 | 100010200102021201 |
4 | 13310012012233 |
5 | 232030101012 |
6 | 21001510331 |
7 | 3151210006 |
oct | 764060657 |
9 | 303612251 |
10 | 131097007 |
11 | 68001138 |
12 | 37aa23a7 |
13 | 21210bc2 |
14 | 135a7c3d |
15 | b798857 |
hex | 7d061af |
131097007 has 2 divisors, whose sum is σ = 131097008. Its totient is φ = 131097006.
The previous prime is 131096993. The next prime is 131097101. The reversal of 131097007 is 700790131.
It is a happy number.
It is a weak prime.
It is an emirp because it is prime and its reverse (700790131) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-131097007 is a prime.
It is a super-4 number, since 4×1310970074 (a number of 34 digits) contains 4444 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131097607) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65548503 + 65548504.
It is an arithmetic number, because the mean of its divisors is an integer number (65548504).
Almost surely, 2131097007 is an apocalyptic number.
131097007 is a deficient number, since it is larger than the sum of its proper divisors (1).
131097007 is an equidigital number, since it uses as much as digits as its factorization.
131097007 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1323, while the sum is 28.
The square root of 131097007 is about 11449.7601284918. The cubic root of 131097007 is about 508.0006393755. Note that the first 3 decimals are identical.
The spelling of 131097007 in words is "one hundred thirty-one million, ninety-seven thousand, seven".
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