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70248817 = 2910722639
BaseRepresentation
bin1000010111111…
…10100101110001
311220012000021001
410023332211301
5120440430232
610545402001
71512051022
oct413764561
9156160231
1070248817
1136720a81
121b639301
1311727b62
149488c49
1562796e7
hex42fe971

70248817 has 8 divisors (see below), whose sum is σ = 73353600. Its totient is φ = 67189584.

The previous prime is 70248803. The next prime is 70248839. The reversal of 70248817 is 71884207.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70248817 - 211 = 70246769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70248887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8217 + ... + 14422.

It is an arithmetic number, because the mean of its divisors is an integer number (9169200).

Almost surely, 270248817 is an apocalyptic number.

It is an amenable number.

70248817 is a deficient number, since it is larger than the sum of its proper divisors (3104783).

70248817 is a wasteful number, since it uses less digits than its factorization.

70248817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22775.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 70248817 is about 8381.4567349596. The cubic root of 70248817 is about 412.6162600979.

The spelling of 70248817 in words is "seventy million, two hundred forty-eight thousand, eight hundred seventeen".

Divisors: 1 29 107 3103 22639 656531 2422373 70248817