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70150181 is a prime number
BaseRepresentation
bin1000010111001…
…10100000100101
311212222222221212
410023212200211
5120424301211
610543321205
71511160323
oct413464045
9155888855
1070150181
1136663962
121b5b0205
13116c1caa
149460d13
15625a38b
hex42e6825

70150181 has 2 divisors, whose sum is σ = 70150182. Its totient is φ = 70150180.

The previous prime is 70150141. The next prime is 70150193. The reversal of 70150181 is 18105107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52852900 + 17297281 = 7270^2 + 4159^2 .

It is a cyclic number.

It is not a de Polignac number, because 70150181 - 214 = 70133797 is a prime.

It is a super-2 number, since 2×701501812 = 9842095788665522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70150141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35075090 + 35075091.

It is an arithmetic number, because the mean of its divisors is an integer number (35075091).

Almost surely, 270150181 is an apocalyptic number.

It is an amenable number.

70150181 is a deficient number, since it is larger than the sum of its proper divisors (1).

70150181 is an equidigital number, since it uses as much as digits as its factorization.

70150181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 23.

The square root of 70150181 is about 8375.5704880324. The cubic root of 70150181 is about 412.4230521913.

Adding to 70150181 its reverse (18105107), we get a palindrome (88255288).

The spelling of 70150181 in words is "seventy million, one hundred fifty thousand, one hundred eighty-one".