Search a number
-
+
12853680 = 2435721093
BaseRepresentation
bin110001000010…
…000110110000
3220012000221020
4301002012300
511242304210
61135255440
7214153200
oct61020660
926160836
1012853680
11728a184
12437a580
132880738
1419c8400
1511dd770
hexc421b0

12853680 has 120 divisors (see below), whose sum is σ = 46394352. Its totient is φ = 2935296.

The previous prime is 12853657. The next prime is 12853693. The reversal of 12853680 is 8635821.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11214 + ... + 12306.

Almost surely, 212853680 is an apocalyptic number.

12853680 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 12853680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23197176).

12853680 is an abundant number, since it is smaller than the sum of its proper divisors (33540672).

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

12853680 is a wasteful number, since it uses less digits than its factorization.

12853680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123 (or 1110 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 12853680 is about 3585.2029231272. The cubic root of 12853680 is about 234.2479656470.

The spelling of 12853680 in words is "twelve million, eight hundred fifty-three thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 49 56 60 70 80 84 98 105 112 120 140 147 168 196 210 240 245 280 294 336 392 420 490 560 588 735 784 840 980 1093 1176 1470 1680 1960 2186 2352 2940 3279 3920 4372 5465 5880 6558 7651 8744 10930 11760 13116 15302 16395 17488 21860 22953 26232 30604 32790 38255 43720 45906 52464 53557 61208 65580 76510 87440 91812 107114 114765 122416 131160 153020 160671 183624 214228 229530 262320 267785 306040 321342 367248 428456 459060 535570 612080 642684 803355 856912 918120 1071140 1285368 1606710 1836240 2142280 2570736 3213420 4284560 6426840 12853680