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13859669 = 131241439
BaseRepresentation
bin110100110111…
…101101010101
3222002010220002
4310313231111
512022002134
61213021045
7225543125
oct64675525
928063802
1013859669
117906a7a
124784785
132b435b5
141baac85
15133b87e
hexd37b55

13859669 has 8 divisors (see below), whose sum is σ = 14055360. Its totient is φ = 13665600.

The previous prime is 13859663. The next prime is 13859701. The reversal of 13859669 is 96695831.

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

It is a cyclic number.

It is not a de Polignac number, because 13859669 - 24 = 13859653 is a prime.

It is a super-2 number, since 2×138596692 = 384180849579122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13859663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31352 + ... + 31790.

It is an arithmetic number, because the mean of its divisors is an integer number (1756920).

Almost surely, 213859669 is an apocalyptic number.

It is an amenable number.

13859669 is a deficient number, since it is larger than the sum of its proper divisors (195691).

13859669 is a wasteful number, since it uses less digits than its factorization.

13859669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811.

The product of its digits is 349920, while the sum is 47.

The square root of 13859669 is about 3722.8576389650. The cubic root of 13859669 is about 240.2062405435.

The spelling of 13859669 in words is "thirteen million, eight hundred fifty-nine thousand, six hundred sixty-nine".

Divisors: 1 131 241 439 31571 57509 105799 13859669