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13007040 = 263517797
BaseRepresentation
bin110001100111…
…100011000000
3220110211022020
4301213203000
511312211130
61142441440
7215362254
oct61474300
926424266
1013007040
117384422
124433280
132905497
141a28264
15121de10
hexc678c0

13007040 has 112 divisors (see below), whose sum is σ = 43781472. Its totient is φ = 3260416.

The previous prime is 13007009. The next prime is 13007041. The reversal of 13007040 is 4070031.

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

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (13007041) 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, 15922 + ... + 16718.

It is an arithmetic number, because the mean of its divisors is an integer number (390906).

Almost surely, 213007040 is an apocalyptic number.

13007040 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 13007040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21890736).

13007040 is an abundant number, since it is smaller than the sum of its proper divisors (30774432).

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

13007040 is a wasteful number, since it uses less digits than its factorization.

13007040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 13007040 is about 3606.5274156729. The cubic root of 13007040 is about 235.1759057182.

Adding to 13007040 its reverse (4070031), we get a palindrome (17077071).

The spelling of 13007040 in words is "thirteen million, seven thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 60 64 68 80 85 96 102 120 136 160 170 192 204 240 255 272 320 340 408 480 510 544 680 797 816 960 1020 1088 1360 1594 1632 2040 2391 2720 3188 3264 3985 4080 4782 5440 6376 7970 8160 9564 11955 12752 13549 15940 16320 19128 23910 25504 27098 31880 38256 40647 47820 51008 54196 63760 67745 76512 81294 95640 108392 127520 135490 153024 162588 191280 203235 216784 255040 270980 325176 382560 406470 433568 541960 650352 765120 812940 867136 1083920 1300704 1625880 2167840 2601408 3251760 4335680 6503520 13007040