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BaseRepresentation
bin10001001101010001
310120200102
4101031101
54223411
61302145
7412325
oct211521
9116612
1070481
1148a54
1234955
1326108
141b985
1515d3b
hex11351

70481 has 2 divisors, whose sum is σ = 70482. Its totient is φ = 70480.

The previous prime is 70459. The next prime is 70487. The reversal of 70481 is 18407.

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., 70225 + 256 = 265^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 70481 - 210 = 69457 is a prime.

It is a super-2 number, since 2×704812 = 9935142722, which contains 22 as substring.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 70481.

It is not a weakly prime, because it can be changed into another prime (70487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35240 + 35241.

It is an arithmetic number, because the mean of its divisors is an integer number (35241).

270481 is an apocalyptic number.

It is an amenable number.

70481 is a deficient number, since it is larger than the sum of its proper divisors (1).

70481 is an equidigital number, since it uses as much as digits as its factorization.

70481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 70481 is about 265.4825794661. The cubic root of 70481 is about 41.3070346640.

Adding to 70481 its reverse (18407), we get a palindrome (88888).

It can be divided in two parts, 70 and 481, that multiplied together give a triangular number (33670 = T259).

The spelling of 70481 in words is "seventy thousand, four hundred eighty-one".