Base | Representation |
---|---|
bin | 100101111001111010… |
… | …001101010001001001 |
3 | 10220001110020121021002 |
4 | 211321322031101021 |
5 | 1131323200214442 |
6 | 30410342224345 |
7 | 2640404232662 |
oct | 457172152111 |
9 | 126043217232 |
10 | 40700007497 |
11 | 16296103036 |
12 | 7a7a4250b5 |
13 | 3ab80c5196 |
14 | 1d81548369 |
15 | 10d31ab732 |
hex | 979e8d449 |
40700007497 has 2 divisors, whose sum is σ = 40700007498. Its totient is φ = 40700007496.
The previous prime is 40700007473. The next prime is 40700007499. The reversal of 40700007497 is 79470000704.
40700007497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 38154199561 + 2545807936 = 195331^2 + 50456^2 .
It is a cyclic number.
It is not a de Polignac number, because 40700007497 - 220 = 40698958921 is a prime.
It is a super-2 number, since 2×407000074972 (a number of 22 digits) contains 22 as substring.
Together with 40700007499, it forms a pair of twin primes.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 40700007497.
It is not a weakly prime, because it can be changed into another prime (40700007499) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20350003748 + 20350003749.
It is an arithmetic number, because the mean of its divisors is an integer number (20350003749).
Almost surely, 240700007497 is an apocalyptic number.
It is an amenable number.
40700007497 is a deficient number, since it is larger than the sum of its proper divisors (1).
40700007497 is an equidigital number, since it uses as much as digits as its factorization.
40700007497 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 49392, while the sum is 38.
The spelling of 40700007497 in words is "forty billion, seven hundred million, seven thousand, four hundred ninety-seven".
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