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13313040 = 24351317251
BaseRepresentation
bin110010110010…
…010000010000
3221001101001120
4302302100100
511402004130
61153202240
7221105346
oct62622020
927041046
1013313040
117573314
124560380
1329b1850
141aa7996
15127e910
hexcb2410

13313040 has 160 divisors (see below), whose sum is σ = 47246976. Its totient is φ = 3072000.

The previous prime is 13313039. The next prime is 13313071. The reversal of 13313040 is 4031331.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52915 + ... + 53165.

Almost surely, 213313040 is an apocalyptic number.

13313040 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 13313040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23623488).

13313040 is an abundant number, since it is smaller than the sum of its proper divisors (33933936).

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

13313040 is a wasteful number, since it uses less digits than its factorization.

13313040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13313040 is about 3648.7038794619. The cubic root of 13313040 is about 237.0058571787.

Adding to 13313040 its reverse (4031331), we get a palindrome (17344371).

It can be divided in two parts, 1331 and 3040, that added together give a triangular number (4371 = T93).

The spelling of 13313040 in words is "thirteen million, three hundred thirteen thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 17 20 24 26 30 34 39 40 48 51 52 60 65 68 78 80 85 102 104 120 130 136 156 170 195 204 208 221 240 251 255 260 272 312 340 390 408 442 502 510 520 624 663 680 753 780 816 884 1004 1020 1040 1105 1255 1326 1360 1506 1560 1768 2008 2040 2210 2510 2652 3012 3120 3263 3315 3536 3765 4016 4080 4267 4420 5020 5304 6024 6526 6630 7530 8534 8840 9789 10040 10608 12048 12801 13052 13260 15060 16315 17068 17680 19578 20080 21335 25602 26104 26520 30120 32630 34136 39156 42670 48945 51204 52208 53040 55471 60240 64005 65260 68272 78312 85340 97890 102408 110942 128010 130520 156624 166413 170680 195780 204816 221884 256020 261040 277355 332826 341360 391560 443768 512040 554710 665652 783120 832065 887536 1024080 1109420 1331304 1664130 2218840 2662608 3328260 4437680 6656520 13313040