Base | Representation |
---|---|
bin | 1001100011010… |
… | …01110001000101 |
3 | 12120202202211111 |
4 | 10301221301011 |
5 | 131002444442 |
6 | 11541205021 |
7 | 1662023401 |
oct | 461516105 |
9 | 176682744 |
10 | 80124997 |
11 | 41257107 |
12 | 22a00771 |
13 | 137a5254 |
14 | a8da101 |
15 | 707ab17 |
hex | 4c69c45 |
80124997 has 2 divisors, whose sum is σ = 80124998. Its totient is φ = 80124996.
The previous prime is 80124983. The next prime is 80125037. The reversal of 80124997 is 79942108.
It is an a-pointer prime, because the next prime (80125037) can be obtained adding 80124997 to its sum of digits (40).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 75794436 + 4330561 = 8706^2 + 2081^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-80124997 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80124977) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40062498 + 40062499.
It is an arithmetic number, because the mean of its divisors is an integer number (40062499).
Almost surely, 280124997 is an apocalyptic number.
It is an amenable number.
80124997 is a deficient number, since it is larger than the sum of its proper divisors (1).
80124997 is an equidigital number, since it uses as much as digits as its factorization.
80124997 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 36288, while the sum is 40.
The square root of 80124997 is about 8951.2567274098. The cubic root of 80124997 is about 431.1112361219. Note that the first 3 decimals are identical.
The spelling of 80124997 in words is "eighty million, one hundred twenty-four thousand, nine hundred ninety-seven".
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