Base | Representation |
---|---|
bin | 1111001011100… |
… | …11110101100001 |
3 | 22212122011022201 |
4 | 13211303311201 |
5 | 230100232121 |
6 | 20345333201 |
7 | 3104322046 |
oct | 745636541 |
9 | 285564281 |
10 | 127352161 |
11 | 65983622 |
12 | 36797201 |
13 | 204cc511 |
14 | 12cb11cd |
15 | b2a8e91 |
hex | 7973d61 |
127352161 has 2 divisors, whose sum is σ = 127352162. Its totient is φ = 127352160.
The previous prime is 127352131. The next prime is 127352177. The reversal of 127352161 is 161253721.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 64641600 + 62710561 = 8040^2 + 7919^2 .
It is a cyclic number.
It is not a de Polignac number, because 127352161 - 27 = 127352033 is a prime.
It is a super-2 number, since 2×1273521612 = 32437145822739842, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (127352131) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63676080 + 63676081.
It is an arithmetic number, because the mean of its divisors is an integer number (63676081).
Almost surely, 2127352161 is an apocalyptic number.
It is an amenable number.
127352161 is a deficient number, since it is larger than the sum of its proper divisors (1).
127352161 is an equidigital number, since it uses as much as digits as its factorization.
127352161 is an evil number, because the sum of its binary digits is even.
The product of its digits is 2520, while the sum is 28.
The square root of 127352161 is about 11285.0414709030. The cubic root of 127352161 is about 503.1167460858.
The spelling of 127352161 in words is "one hundred twenty-seven million, three hundred fifty-two thousand, one hundred sixty-one".
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