Base | Representation |
---|---|
bin | 10010101010100111… |
… | …11000011111001001 |
3 | 221212101200012212001 |
4 | 21111103320133021 |
5 | 131010412210212 |
6 | 4334221151001 |
7 | 503222610565 |
oct | 112523703711 |
9 | 27771605761 |
10 | 10021210057 |
11 | 4282791491 |
12 | 1b380bb461 |
13 | c392055c1 |
14 | 6b0cc46a5 |
15 | 3d9b9c657 |
hex | 2554f87c9 |
10021210057 has 2 divisors, whose sum is σ = 10021210058. Its totient is φ = 10021210056.
The previous prime is 10021210039. The next prime is 10021210151. The reversal of 10021210057 is 75001212001.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6513135616 + 3508074441 = 80704^2 + 59229^2 .
It is a cyclic number.
It is not a de Polignac number, because 10021210057 - 211 = 10021208009 is a prime.
It is not a weakly prime, because it can be changed into another prime (10021210027) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010605028 + 5010605029.
It is an arithmetic number, because the mean of its divisors is an integer number (5010605029).
Almost surely, 210021210057 is an apocalyptic number.
It is an amenable number.
10021210057 is a deficient number, since it is larger than the sum of its proper divisors (1).
10021210057 is an equidigital number, since it uses as much as digits as its factorization.
10021210057 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 140, while the sum is 19.
Adding to 10021210057 its reverse (75001212001), we get a palindrome (85022422058).
The spelling of 10021210057 in words is "ten billion, twenty-one million, two hundred ten thousand, fifty-seven".
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