Base | Representation |
---|---|
bin | 1101001011000110… |
… | …00100011111110101 |
3 | 200020212222012211111 |
4 | 12211203010133311 |
5 | 103441013321042 |
6 | 3125442035021 |
7 | 340155264025 |
oct | 64543043765 |
9 | 20225865744 |
10 | 7072401397 |
11 | 2aaa205936 |
12 | 1454648a71 |
13 | 8893057c9 |
14 | 4b1405a85 |
15 | 2b5d6b517 |
hex | 1a58c47f5 |
7072401397 has 2 divisors, whose sum is σ = 7072401398. Its totient is φ = 7072401396.
The previous prime is 7072401389. The next prime is 7072401433. The reversal of 7072401397 is 7931042707.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6048017361 + 1024384036 = 77769^2 + 32006^2 .
It is a cyclic number.
It is not a de Polignac number, because 7072401397 - 23 = 7072401389 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (7072401317) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3536200698 + 3536200699.
It is an arithmetic number, because the mean of its divisors is an integer number (3536200699).
Almost surely, 27072401397 is an apocalyptic number.
It is an amenable number.
7072401397 is a deficient number, since it is larger than the sum of its proper divisors (1).
7072401397 is an equidigital number, since it uses as much as digits as its factorization.
7072401397 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 74088, while the sum is 40.
The square root of 7072401397 is about 84097.5706961860. The cubic root of 7072401397 is about 1919.5037596477.
The spelling of 7072401397 in words is "seven billion, seventy-two million, four hundred one thousand, three hundred ninety-seven".
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