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26132820 = 22357431447
BaseRepresentation
bin110001110110…
…0000101010100
31211011200111020
41203230011110
523142222240
62332041140
7435060660
oct143540524
954150436
1026132820
1113829a7a
1289031b0
13554ca0c
1436838a0
1524630d0
hex18ec154

26132820 has 96 divisors (see below), whose sum is σ = 85628928. Its totient is φ = 5830272.

The previous prime is 26132819. The next prime is 26132831. The reversal of 26132820 is 2823162.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 17337 + ... + 18783.

It is an arithmetic number, because the mean of its divisors is an integer number (891968).

Almost surely, 226132820 is an apocalyptic number.

26132820 is a gapful number since it is divisible by the number (20) 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 26132820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42814464).

26132820 is an abundant number, since it is smaller than the sum of its proper divisors (59496108).

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

26132820 is a wasteful number, since it uses less digits than its factorization.

26132820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509 (or 1507 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 26132820 is about 5112.0269952339. The cubic root of 26132820 is about 296.7532101731.

Adding to 26132820 its reverse (2823162), we get a palindrome (28955982).

The spelling of 26132820 in words is "twenty-six million, one hundred thirty-two thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 43 60 70 84 86 105 129 140 172 210 215 258 301 420 430 516 602 645 860 903 1204 1290 1447 1505 1806 2580 2894 3010 3612 4341 4515 5788 6020 7235 8682 9030 10129 14470 17364 18060 20258 21705 28940 30387 40516 43410 50645 60774 62221 86820 101290 121548 124442 151935 186663 202580 248884 303870 311105 373326 435547 607740 622210 746652 871094 933315 1244420 1306641 1742188 1866630 2177735 2613282 3733260 4355470 5226564 6533205 8710940 13066410 26132820