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13486969 = 73184753
BaseRepresentation
bin110011011100…
…101101111001
3221101012122101
4303130231321
511423040334
61201023401
7222431416
oct63345571
927335571
1013486969
117681a61
124624b61
132a42a72
141b1110d
1512b6214
hexcdcb79

13486969 has 4 divisors (see below), whose sum is σ = 13671796. Its totient is φ = 13302144.

The previous prime is 13486951. The next prime is 13486997. The reversal of 13486969 is 96968431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3374569 + 10112400 = 1837^2 + 3180^2 .

It is a cyclic number.

It is not a de Polignac number, because 13486969 - 25 = 13486937 is a prime.

It is a super-2 number, since 2×134869692 = 363796665613922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13486999) 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, 92304 + ... + 92449.

It is an arithmetic number, because the mean of its divisors is an integer number (3417949).

Almost surely, 213486969 is an apocalyptic number.

It is an amenable number.

13486969 is a deficient number, since it is larger than the sum of its proper divisors (184827).

13486969 is an equidigital number, since it uses as much as digits as its factorization.

13486969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184826.

The product of its digits is 279936, while the sum is 46.

The square root of 13486969 is about 3672.4608915549. The cubic root of 13486969 is about 238.0335204535.

The spelling of 13486969 in words is "thirteen million, four hundred eighty-six thousand, nine hundred sixty-nine".

Divisors: 1 73 184753 13486969