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13669373 = 20296737
BaseRepresentation
bin110100001001…
…001111111101
3221201110212002
4310021033331
511444404443
61204552045
7224121254
oct64111775
927643762
1013669373
117797003
1246b2625
132aa7ab3
141b5b79b
1513002b8
hexd093fd

13669373 has 4 divisors (see below), whose sum is σ = 13678140. Its totient is φ = 13660608.

The previous prime is 13669361. The next prime is 13669423. The reversal of 13669373 is 37396631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11276164 + 2393209 = 3358^2 + 1547^2 .

It is a cyclic number.

It is not a de Polignac number, because 13669373 - 210 = 13668349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13669333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340 + ... + 5397.

It is an arithmetic number, because the mean of its divisors is an integer number (3419535).

Almost surely, 213669373 is an apocalyptic number.

It is an amenable number.

13669373 is a deficient number, since it is larger than the sum of its proper divisors (8767).

13669373 is an equidigital number, since it uses as much as digits as its factorization.

13669373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8766.

The product of its digits is 61236, while the sum is 38.

The square root of 13669373 is about 3697.2115168056. The cubic root of 13669373 is about 239.1018105831.

The spelling of 13669373 in words is "thirteen million, six hundred sixty-nine thousand, three hundred seventy-three".

Divisors: 1 2029 6737 13669373