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69070989 = 3131771051
BaseRepresentation
bin1000001110111…
…11000010001101
311210222011120210
410013133002031
5120140232424
610504233033
71466044101
oct407370215
9153864523
1069070989
1135a97069
121b16b779
1311404a10
14925d901
1560e5729
hex41df08d

69070989 has 8 divisors (see below), whose sum is σ = 99178912. Its totient is φ = 42505200.

The previous prime is 69070987. The next prime is 69070993. The reversal of 69070989 is 98907096.

It is a happy number.

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

It is not a de Polignac number, because 69070989 - 21 = 69070987 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69070987) 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 7 ways as a sum of consecutive naturals, for example, 885487 + ... + 885564.

It is an arithmetic number, because the mean of its divisors is an integer number (12397364).

Almost surely, 269070989 is an apocalyptic number.

It is an amenable number.

69070989 is a deficient number, since it is larger than the sum of its proper divisors (30107923).

69070989 is a wasteful number, since it uses less digits than its factorization.

69070989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771067.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 69070989 is about 8310.8958000928. The cubic root of 69070989 is about 410.2972046938.

The spelling of 69070989 in words is "sixty-nine million, seventy thousand, nine hundred eighty-nine".

Divisors: 1 3 13 39 1771051 5313153 23023663 69070989