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13383438 = 234747459
BaseRepresentation
bin110011000011…
…011100001110
3221011221121220
4303003130032
511411232223
61154504210
7221520525
oct63033416
927157556
1013383438
1176111a2
124595066
132a078c3
141ac54bc
1512956e3
hexcc370e

13383438 has 16 divisors (see below), whose sum is σ = 27336960. Its totient is φ = 4366136.

The previous prime is 13383431. The next prime is 13383463. The reversal of 13383438 is 83438331.

13383438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13383399 and 13383408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13383431) 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, 23448 + ... + 24011.

It is an arithmetic number, because the mean of its divisors is an integer number (1708560).

Almost surely, 213383438 is an apocalyptic number.

13383438 is an abundant number, since it is smaller than the sum of its proper divisors (13953522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13383438 is a wasteful number, since it uses less digits than its factorization.

13383438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47511.

The product of its digits is 20736, while the sum is 33.

The square root of 13383438 is about 3658.3381473013. The cubic root of 13383438 is about 237.4228772673.

The spelling of 13383438 in words is "thirteen million, three hundred eighty-three thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 47 94 141 282 47459 94918 142377 284754 2230573 4461146 6691719 13383438