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26130928 = 2419431999
BaseRepresentation
bin110001110101…
…1100111110000
31211011120220011
41203223213300
523142142203
62332024304
7435052315
oct143534760
954146804
1026130928
111382860a
128902094
13554bbb5
143682d0c
15246276d
hex18eb9f0

26130928 has 40 divisors (see below), whose sum is σ = 54560000. Its totient is φ = 12083904.

The previous prime is 26130869. The next prime is 26130931. The reversal of 26130928 is 82903162.

It is a self number, because there is not a number n which added to its sum of digits gives 26130928.

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, 12073 + ... + 14071.

It is an arithmetic number, because the mean of its divisors is an integer number (1364000).

Almost surely, 226130928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26130928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27280000).

26130928 is an abundant number, since it is smaller than the sum of its proper divisors (28429072).

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

26130928 is a wasteful number, since it uses less digits than its factorization.

26130928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069 (or 2063 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 26130928 is about 5111.8419380885. The cubic root of 26130928 is about 296.7460484173.

The spelling of 26130928 in words is "twenty-six million, one hundred thirty thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 16 19 38 43 76 86 152 172 304 344 688 817 1634 1999 3268 3998 6536 7996 13072 15992 31984 37981 75962 85957 151924 171914 303848 343828 607696 687656 1375312 1633183 3266366 6532732 13065464 26130928