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26130260 = 22513100501
BaseRepresentation
bin110001110101…
…1011101010100
31211011112222102
41203223131110
523142132020
62332021232
7435050342
oct143533524
954145872
1026130260
1113828062
128901818
13554b7c0
143682992
152462475
hex18eb754

26130260 has 24 divisors (see below), whose sum is σ = 59095176. Its totient is φ = 9648000.

The previous prime is 26130259. The next prime is 26130271. The reversal of 26130260 is 6203162.

It can be written as a sum of positive squares in 4 ways, for example, as 99856 + 26030404 = 316^2 + 5102^2 .

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49991 + ... + 50510.

It is an arithmetic number, because the mean of its divisors is an integer number (2462299).

Almost surely, 226130260 is an apocalyptic number.

26130260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26130260 is an abundant number, since it is smaller than the sum of its proper divisors (32964916).

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

26130260 is a wasteful number, since it uses less digits than its factorization.

26130260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100523 (or 100521 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 26130260 is about 5111.7765991874. The cubic root of 26130260 is about 296.7435197656.

The spelling of 26130260 in words is "twenty-six million, one hundred thirty thousand, two hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 100501 201002 402004 502505 1005010 1306513 2010020 2613026 5226052 6532565 13065130 26130260