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70930817 = 1712373373
BaseRepresentation
bin1000011101001…
…01000110000001
311221110122210022
410032211012001
5121124241232
611012143225
71520621246
oct416450601
9157418708
1070930817
1137047411
121b907b15
13119063c9
1495c55cd
156361812
hex43a5181

70930817 has 8 divisors (see below), whose sum is σ = 75186216. Its totient is φ = 66684672.

The previous prime is 70930793. The next prime is 70930841. The reversal of 70930817 is 71803907.

It is an interprime number because it is at equal distance from previous prime (70930793) and next prime (70930841).

It can be written as a sum of positive squares in 4 ways, for example, as 51208336 + 19722481 = 7156^2 + 4441^2 .

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 70930817 - 26 = 70930753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70930877) 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, 19343 + ... + 22715.

It is an arithmetic number, because the mean of its divisors is an integer number (9398277).

Almost surely, 270930817 is an apocalyptic number.

It is an amenable number.

70930817 is a deficient number, since it is larger than the sum of its proper divisors (4255399).

70930817 is a wasteful number, since it uses less digits than its factorization.

70930817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4627.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 70930817 is about 8422.0435168669. The cubic root of 70930817 is about 413.9472363074.

The spelling of 70930817 in words is "seventy million, nine hundred thirty thousand, eight hundred seventeen".

Divisors: 1 17 1237 3373 21029 57341 4172401 70930817