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13885633 = 47295439
BaseRepresentation
bin110100111110…
…000011000001
3222010110111201
4310332003001
512023320013
61213341201
7226011616
oct64760301
928113451
1013885633
117924533
124797801
132b52368
141bb650d
1513443dd
hexd3e0c1

13885633 has 4 divisors (see below), whose sum is σ = 14181120. Its totient is φ = 13590148.

The previous prime is 13885631. The next prime is 13885639. The reversal of 13885633 is 33658831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33658831 = 301911149.

It is a cyclic number.

It is not a de Polignac number, because 13885633 - 21 = 13885631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13885592 and 13885601.

It is not an unprimeable number, because it can be changed into a prime (13885631) 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, 147673 + ... + 147766.

It is an arithmetic number, because the mean of its divisors is an integer number (3545280).

Almost surely, 213885633 is an apocalyptic number.

It is an amenable number.

13885633 is a deficient number, since it is larger than the sum of its proper divisors (295487).

13885633 is an equidigital number, since it uses as much as digits as its factorization.

13885633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295486.

The product of its digits is 51840, while the sum is 37.

The square root of 13885633 is about 3726.3431135632. The cubic root of 13885633 is about 240.3561436992.

It can be divided in two parts, 1388 and 5633, that added together give a triangular number (7021 = T118).

The spelling of 13885633 in words is "thirteen million, eight hundred eighty-five thousand, six hundred thirty-three".

Divisors: 1 47 295439 13885633