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70108641 = 327789849
BaseRepresentation
bin1000010110111…
…00010111100001
311212220212222100
410023130113201
5120421434031
610542401013
71510625241
oct413342741
9155825870
1070108641
1136635729
121b590169
13116a9105
14944db21
15624cde6
hex42dc5e1

70108641 has 6 divisors (see below), whose sum is σ = 101268050. Its totient is φ = 46739088.

The previous prime is 70108637. The next prime is 70108667. The reversal of 70108641 is 14680107.

It is a happy number.

70108641 is a `hidden beast` number, since 7 + 0 + 10 + 8 + 641 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65610000 + 4498641 = 8100^2 + 2121^2 .

It is not a de Polignac number, because 70108641 - 22 = 70108637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70108541) 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 5 ways as a sum of consecutive naturals, for example, 3894916 + ... + 3894933.

Almost surely, 270108641 is an apocalyptic number.

It is an amenable number.

70108641 is a deficient number, since it is larger than the sum of its proper divisors (31159409).

70108641 is a wasteful number, since it uses less digits than its factorization.

70108641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7789855 (or 7789852 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 70108641 is about 8373.0902897317. The cubic root of 70108641 is about 412.3416295630.

Adding to 70108641 its reverse (14680107), we get a palindrome (84788748).

It can be divided in two parts, 7010 and 8641, that added together give a palindrome (15651).

The spelling of 70108641 in words is "seventy million, one hundred eight thousand, six hundred forty-one".

Divisors: 1 3 9 7789849 23369547 70108641