Base | Representation |
---|---|
bin | 1110010110100… |
… | …1100000010101 |
3 | 11012021112012222 |
4 | 3211221200111 |
5 | 110402412411 |
6 | 5550152125 |
7 | 1330462031 |
oct | 345514025 |
9 | 135245188 |
10 | 60200981 |
11 | 30a88985 |
12 | 181b2645 |
13 | c61a5a9 |
14 | 7dd11c1 |
15 | 54424db |
hex | 3969815 |
60200981 has 2 divisors, whose sum is σ = 60200982. Its totient is φ = 60200980.
The previous prime is 60200947. The next prime is 60200999. The reversal of 60200981 is 18900206.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 57138481 + 3062500 = 7559^2 + 1750^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-60200981 is a prime.
It is a super-5 number, since 5×602009815 (a number of 40 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.
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 60200981.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (60200941) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30100490 + 30100491.
It is an arithmetic number, because the mean of its divisors is an integer number (30100491).
Almost surely, 260200981 is an apocalyptic number.
It is an amenable number.
60200981 is a deficient number, since it is larger than the sum of its proper divisors (1).
60200981 is an equidigital number, since it uses as much as digits as its factorization.
60200981 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 864, while the sum is 26.
The square root of 60200981 is about 7758.9291142528. The cubic root of 60200981 is about 391.9233958495.
The spelling of 60200981 in words is "sixty million, two hundred thousand, nine hundred eighty-one".
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