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26130400 = 255289367
BaseRepresentation
bin110001110101…
…1011111100000
31211011120011121
41203223133200
523142133100
62332022024
7435050632
oct143533740
954146147
1026130400
111382817a
128901914
13554b89a
143682a52
15246251a
hex18eb7e0

26130400 has 72 divisors (see below), whose sum is σ = 64683360. Its totient is φ = 10306560.

The previous prime is 26130383. The next prime is 26130409. The reversal of 26130400 is 403162.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26130409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71017 + ... + 71383.

It is an arithmetic number, because the mean of its divisors is an integer number (898380).

Almost surely, 226130400 is an apocalyptic number.

26130400 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 26130400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32341680).

26130400 is an abundant number, since it is smaller than the sum of its proper divisors (38552960).

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

26130400 is a wasteful number, since it uses less digits than its factorization.

26130400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 26130400 is about 5111.7902930382. The cubic root of 26130400 is about 296.7440497261.

Adding to 26130400 its reverse (403162), we get a palindrome (26533562).

The spelling of 26130400 in words is "twenty-six million, one hundred thirty thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 89 100 160 178 200 356 367 400 445 712 734 800 890 1424 1468 1780 1835 2225 2848 2936 3560 3670 4450 5872 7120 7340 8900 9175 11744 14240 14680 17800 18350 29360 32663 35600 36700 58720 65326 71200 73400 130652 146800 163315 261304 293600 326630 522608 653260 816575 1045216 1306520 1633150 2613040 3266300 5226080 6532600 13065200 26130400