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13893000 = 2335311421
BaseRepresentation
bin110100111111…
…110110001000
3222010211121120
4310333312020
512024034000
61213435240
7226042242
oct64776610
928124546
1013893000
11792a020
12479bb20
132b55814
141bb9092
1513466a0
hexd3fd88

13893000 has 128 divisors (see below), whose sum is σ = 47399040. Its totient is φ = 3360000.

The previous prime is 13892993. The next prime is 13893007. The reversal of 13893000 is 39831.

It is an interprime number because it is at equal distance from previous prime (13892993) and next prime (13893007).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (13893007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32790 + ... + 33210.

It is an arithmetic number, because the mean of its divisors is an integer number (370305).

Almost surely, 213893000 is an apocalyptic number.

13893000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13893000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23699520).

13893000 is an abundant number, since it is smaller than the sum of its proper divisors (33506040).

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

13893000 is a wasteful number, since it uses less digits than its factorization.

13893000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 13893000 is about 3727.3314851244. The cubic root of 13893000 is about 240.3986430378.

13893000 divided by its sum of digits (24) gives a palindrome (578875).

The spelling of 13893000 in words is "thirteen million, eight hundred ninety-three thousand".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 25 30 33 40 44 50 55 60 66 75 88 100 110 120 125 132 150 165 200 220 250 264 275 300 330 375 421 440 500 550 600 660 750 825 842 1000 1100 1263 1320 1375 1500 1650 1684 2105 2200 2526 2750 3000 3300 3368 4125 4210 4631 5052 5500 6315 6600 8250 8420 9262 10104 10525 11000 12630 13893 16500 16840 18524 21050 23155 25260 27786 31575 33000 37048 42100 46310 50520 52625 55572 63150 69465 84200 92620 105250 111144 115775 126300 138930 157875 185240 210500 231550 252600 277860 315750 347325 421000 463100 555720 578875 631500 694650 926200 1157750 1263000 1389300 1736625 2315500 2778600 3473250 4631000 6946500 13893000