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13000750 = 2537171923
BaseRepresentation
bin110001100110…
…000000101110
3220110111200021
4301212000232
511312011000
61142352354
7215335030
oct61460056
926414607
1013000750
11737a724
12442b6ba
132902669
141a25c50
15121c11a
hexc6602e

13000750 has 128 divisors (see below), whose sum is σ = 32348160. Its totient is φ = 3801600.

The previous prime is 13000723. The next prime is 13000751. The reversal of 13000750 is 5700031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000751) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 565239 + ... + 565261.

It is an arithmetic number, because the mean of its divisors is an integer number (252720).

Almost surely, 213000750 is an apocalyptic number.

13000750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13000750 is an abundant number, since it is smaller than the sum of its proper divisors (19347410).

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

13000750 is a wasteful number, since it uses less digits than its factorization.

13000750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 16.

The square root of 13000750 is about 3605.6552802507. The cubic root of 13000750 is about 235.1379904826.

Adding to 13000750 its reverse (5700031), we get a palindrome (18700781).

The spelling of 13000750 in words is "thirteen million, seven hundred fifty", and thus it is an aban number.

Divisors: 1 2 5 7 10 14 17 19 23 25 34 35 38 46 50 70 85 95 115 119 125 133 161 170 175 190 230 238 250 266 322 323 350 391 425 437 475 575 595 646 665 782 805 850 874 875 950 1150 1190 1330 1610 1615 1750 1955 2125 2185 2261 2375 2737 2875 2975 3059 3230 3325 3910 4025 4250 4370 4522 4750 5474 5750 5950 6118 6650 7429 8050 8075 9775 10925 11305 13685 14858 14875 15295 16150 16625 19550 20125 21850 22610 27370 29750 30590 33250 37145 40250 40375 48875 52003 54625 56525 68425 74290 76475 80750 97750 104006 109250 113050 136850 152950 185725 260015 282625 342125 371450 382375 520030 565250 684250 764750 928625 1300075 1857250 2600150 6500375 13000750