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13889354 = 261311329
BaseRepresentation
bin110100111110…
…111101001010
3222010122121112
4310332331022
512023424404
61213410322
7226025513
oct64767512
928118545
1013889354
117927306
1247999a2
132b53c6b
141bb7a0a
15134556e
hexd3ef4a

13889354 has 8 divisors (see below), whose sum is σ = 20869860. Its totient is φ = 6932736.

The previous prime is 13889353. The next prime is 13889371. The reversal of 13889354 is 45398831.

It can be written as a sum of positive squares in 2 ways, for example, as 11377129 + 2512225 = 3373^2 + 1585^2 .

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

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13889353) 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, 4439 + ... + 6890.

Almost surely, 213889354 is an apocalyptic number.

13889354 is a deficient number, since it is larger than the sum of its proper divisors (6980506).

13889354 is a wasteful number, since it uses less digits than its factorization.

13889354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11944.

The product of its digits is 103680, while the sum is 41.

The square root of 13889354 is about 3726.8423631809. The cubic root of 13889354 is about 240.3776115798.

The spelling of 13889354 in words is "thirteen million, eight hundred eighty-nine thousand, three hundred fifty-four".

Divisors: 1 2 613 1226 11329 22658 6944677 13889354