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70245011 = 671048433
BaseRepresentation
bin1000010111111…
…01101010010011
311220011211001002
410023331222103
5120440320021
610545332215
71512033644
oct413755223
9156154032
1070245011
1136719131
121b63706b
13117261c5
1494876cb
15627850b
hex42fda93

70245011 has 4 divisors (see below), whose sum is σ = 71293512. Its totient is φ = 69196512.

The previous prime is 70244963. The next prime is 70245017. The reversal of 70245011 is 11054207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11054207 = 12787041.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70245011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70245017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524150 + ... + 524283.

It is an arithmetic number, because the mean of its divisors is an integer number (17823378).

Almost surely, 270245011 is an apocalyptic number.

70245011 is a deficient number, since it is larger than the sum of its proper divisors (1048501).

70245011 is a wasteful number, since it uses less digits than its factorization.

70245011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048500.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 70245011 is about 8381.2296830477. The cubic root of 70245011 is about 412.6088082721.

Adding to 70245011 its reverse (11054207), we get a palindrome (81299218).

The spelling of 70245011 in words is "seventy million, two hundred forty-five thousand, eleven".

Divisors: 1 67 1048433 70245011