Search a number
-
+
12668480 = 265115961
BaseRepresentation
bin110000010100…
…111001000000
3212211121212222
4300110321000
511220342410
61131310212
7212452226
oct60247100
925747788
1012668480
117173020
1242ab368
132817356
14197ab16
1511a3955
hexc14e40

12668480 has 112 divisors (see below), whose sum is σ = 34015680. Its totient is φ = 4454400.

The previous prime is 12668477. The next prime is 12668483. The reversal of 12668480 is 8486621.

It is an interprime number because it is at equal distance from previous prime (12668477) and next prime (12668483).

It is a self number, because there is not a number n which added to its sum of digits gives 12668480.

It is not an unprimeable number, because it can be changed into a prime (12668483) 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, 207650 + ... + 207710.

Almost surely, 212668480 is an apocalyptic number.

12668480 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 12668480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17007840).

12668480 is an abundant number, since it is smaller than the sum of its proper divisors (21347200).

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

12668480 is a wasteful number, since it uses less digits than its factorization.

12668480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 12668480 is about 3559.2808262344. The cubic root of 12668480 is about 233.1174783803.

The spelling of 12668480 in words is "twelve million, six hundred sixty-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 59 61 64 80 88 110 118 122 160 176 220 236 244 295 305 320 352 440 472 488 590 610 649 671 704 880 944 976 1180 1220 1298 1342 1760 1888 1952 2360 2440 2596 2684 3245 3355 3520 3599 3776 3904 4720 4880 5192 5368 6490 6710 7198 9440 9760 10384 10736 12980 13420 14396 17995 18880 19520 20768 21472 25960 26840 28792 35990 39589 41536 42944 51920 53680 57584 71980 79178 103840 107360 115168 143960 158356 197945 207680 214720 230336 287920 316712 395890 575840 633424 791780 1151680 1266848 1583560 2533696 3167120 6334240 12668480