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13889414 = 271190191
BaseRepresentation
bin110100111110…
…111110000110
3222010122200202
4310332332012
512023430124
61213410502
7226025630
oct64767606
928118622
1013889414
117927360
124799a32
132b53cb6
141bb7a50
1513455ae
hexd3ef86

13889414 has 16 divisors (see below), whose sum is σ = 25975296. Its totient is φ = 5411400.

The previous prime is 13889413. The next prime is 13889417. The reversal of 13889414 is 41498831.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13889411) 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, 44942 + ... + 45249.

It is an arithmetic number, because the mean of its divisors is an integer number (1623456).

Almost surely, 213889414 is an apocalyptic number.

13889414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13889414 is a deficient number, since it is larger than the sum of its proper divisors (12085882).

13889414 is a wasteful number, since it uses less digits than its factorization.

13889414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90211.

The product of its digits is 27648, while the sum is 38.

The square root of 13889414 is about 3726.8504128822. The cubic root of 13889414 is about 240.3779577115.

The spelling of 13889414 in words is "thirteen million, eight hundred eighty-nine thousand, four hundred fourteen".

Divisors: 1 2 7 11 14 22 77 154 90191 180382 631337 992101 1262674 1984202 6944707 13889414