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70840808 = 238855101
BaseRepresentation
bin1000011100011…
…11000111101000
311221022002022122
410032033013220
5121113401213
611010210412
71520064653
oct416170750
9157262278
1070840808
1136a95825
121b883a08
13118a444c
1495a089a
156344d08
hex438f1e8

70840808 has 8 divisors (see below), whose sum is σ = 132826530. Its totient is φ = 35420400.

The previous prime is 70840799. The next prime is 70840813. The reversal of 70840808 is 80804807.

It can be written as a sum of positive squares in only one way, i.e., 69923044 + 917764 = 8362^2 + 958^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4427543 + ... + 4427558.

Almost surely, 270840808 is an apocalyptic number.

It is an amenable number.

70840808 is a deficient number, since it is larger than the sum of its proper divisors (61985722).

70840808 is a wasteful number, since it uses less digits than its factorization.

70840808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8855107 (or 8855103 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 70840808 is about 8416.6981649576. The cubic root of 70840808 is about 413.7720668035.

The spelling of 70840808 in words is "seventy million, eight hundred forty thousand, eight hundred eight".

Divisors: 1 2 4 8 8855101 17710202 35420404 70840808