[go: up one dir, main page]

Search a number
-
+
13180752 = 2433132347
BaseRepresentation
bin110010010001…
…111101010000
3220210122121000
4302101331100
511333241002
61150302000
7220014564
oct62217520
926718530
1013180752
117492992
1244b7900
132966580
141a716a4
15125561c
hexc91f50

13180752 has 80 divisors (see below), whose sum is σ = 40761280. Its totient is φ = 4053888.

The previous prime is 13180711. The next prime is 13180753. The reversal of 13180752 is 25708131.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13180753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4443 + ... + 6789.

It is an arithmetic number, because the mean of its divisors is an integer number (509516).

Almost surely, 213180752 is an apocalyptic number.

13180752 is a gapful number since it is divisible by the number (12) 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 13180752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20380640).

13180752 is an abundant number, since it is smaller than the sum of its proper divisors (27580528).

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

13180752 is a wasteful number, since it uses less digits than its factorization.

13180752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377 (or 2365 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 13180752 is about 3630.5305397421. The cubic root of 13180752 is about 236.2182219792.

Adding to 13180752 its reverse (25708131), we get a palindrome (38888883).

The spelling of 13180752 in words is "thirteen million, one hundred eighty thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 27 36 39 48 52 54 72 78 104 108 117 144 156 208 216 234 312 351 432 468 624 702 936 1404 1872 2347 2808 4694 5616 7041 9388 14082 18776 21123 28164 30511 37552 42246 56328 61022 63369 84492 91533 112656 122044 126738 168984 183066 244088 253476 274599 337968 366132 488176 506952 549198 732264 823797 1013904 1098396 1464528 1647594 2196792 3295188 4393584 6590376 13180752