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13842144 = 253337433
BaseRepresentation
bin110100110011…
…011011100000
3222001020212000
4310303123200
512020422034
61212404000
7225441051
oct64633340
928036760
1013842144
1178a4898
124776600
132b38624
141ba4728
151336599
hexd336e0

13842144 has 96 divisors (see below), whose sum is σ = 41559840. Its totient is φ = 4478976.

The previous prime is 13842137. The next prime is 13842149. The reversal of 13842144 is 44124831.

13842144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13842149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31752 + ... + 32184.

It is an arithmetic number, because the mean of its divisors is an integer number (432915).

Almost surely, 213842144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13842144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20779920).

13842144 is an abundant number, since it is smaller than the sum of its proper divisors (27717696).

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

13842144 is a wasteful number, since it uses less digits than its factorization.

13842144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 475 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 13842144 is about 3720.5031917739. The cubic root of 13842144 is about 240.1049540960.

Adding to 13842144 its reverse (44124831), we get a palindrome (57966975).

The spelling of 13842144 in words is "thirteen million, eight hundred forty-two thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 37 48 54 72 74 96 108 111 144 148 216 222 288 296 333 432 433 444 592 666 864 866 888 999 1184 1299 1332 1732 1776 1998 2598 2664 3464 3552 3897 3996 5196 5328 6928 7794 7992 10392 10656 11691 13856 15588 15984 16021 20784 23382 31176 31968 32042 41568 46764 48063 62352 64084 93528 96126 124704 128168 144189 187056 192252 256336 288378 374112 384504 432567 512672 576756 769008 865134 1153512 1538016 1730268 2307024 3460536 4614048 6921072 13842144