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70247201 = 371898573
BaseRepresentation
bin1000010111111…
…10001100100001
311220011221001012
410023332030201
5120440402301
610545350305
71512043223
oct413761441
9156157035
1070247201
113671a842
121b638395
13117271bb
149488413
156278ebb
hex42fe321

70247201 has 4 divisors (see below), whose sum is σ = 72145812. Its totient is φ = 68348592.

The previous prime is 70247171. The next prime is 70247231. The reversal of 70247201 is 10274207.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (70247171) and next prime (70247231).

It can be written as a sum of positive squares in 2 ways, for example, as 63616576 + 6630625 = 7976^2 + 2575^2 .

It is a cyclic number.

It is not a de Polignac number, because 70247201 - 210 = 70246177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70247231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 949250 + ... + 949323.

It is an arithmetic number, because the mean of its divisors is an integer number (18036453).

Almost surely, 270247201 is an apocalyptic number.

It is an amenable number.

70247201 is a deficient number, since it is larger than the sum of its proper divisors (1898611).

70247201 is a wasteful number, since it uses less digits than its factorization.

70247201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898610.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 70247201 is about 8381.3603311157. The cubic root of 70247201 is about 412.6130961396.

The spelling of 70247201 in words is "seventy million, two hundred forty-seven thousand, two hundred one".

Divisors: 1 37 1898573 70247201