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13669078 = 231220469
BaseRepresentation
bin110100001001…
…001011010110
3221201110110011
4310021023112
511444402303
61204550434
7224120353
oct64111326
927643404
1013669078
117796865
1246b241a
132aa7917
141b5b62a
15130016d
hexd092d6

13669078 has 8 divisors (see below), whose sum is σ = 21165120. Its totient is φ = 6614040.

The previous prime is 13669069. The next prime is 13669079. The reversal of 13669078 is 87096631.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13669078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13669079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110173 + ... + 110296.

It is an arithmetic number, because the mean of its divisors is an integer number (2645640).

Almost surely, 213669078 is an apocalyptic number.

13669078 is a deficient number, since it is larger than the sum of its proper divisors (7496042).

13669078 is a wasteful number, since it uses less digits than its factorization.

13669078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220502.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 13669078 is about 3697.1716216589. The cubic root of 13669078 is about 239.1000905447.

The spelling of 13669078 in words is "thirteen million, six hundred sixty-nine thousand, seventy-eight".

Divisors: 1 2 31 62 220469 440938 6834539 13669078