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69696290 = 256969629
BaseRepresentation
bin1000010011101…
…11101100100010
311212010221100002
410021313230202
5120320240130
610525500002
71504260116
oct411675442
9155127302
1069696290
1136383944
121b411602
1311593511
149383746
1561bab45
hex4277b22

69696290 has 8 divisors (see below), whose sum is σ = 125453340. Its totient is φ = 27878512.

The previous prime is 69696283. The next prime is 69696293. The reversal of 69696290 is 9269696.

It can be written as a sum of positive squares in 2 ways, for example, as 56685841 + 13010449 = 7529^2 + 3607^2 .

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

It is not an unprimeable number, because it can be changed into a prime (69696293) 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 3 ways as a sum of consecutive naturals, for example, 3484805 + ... + 3484824.

Almost surely, 269696290 is an apocalyptic number.

69696290 is a deficient number, since it is larger than the sum of its proper divisors (55757050).

69696290 is a wasteful number, since it uses less digits than its factorization.

69696290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6969636.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 69696290 is about 8348.4303913969. The cubic root of 69696290 is about 411.5316299069.

The spelling of 69696290 in words is "sixty-nine million, six hundred ninety-six thousand, two hundred ninety".

Divisors: 1 2 5 10 6969629 13939258 34848145 69696290