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68590026 = 2323810557
BaseRepresentation
bin1000001011010…
…01100111001010
311210001201211100
410011221213022
5120024340101
610450042230
71462001631
oct405514712
9153051740
1068590026
113579877a
121ab79376
1311296b1b
149176518
15604ce86
hex41699ca

68590026 has 12 divisors (see below), whose sum is σ = 148611762. Its totient is φ = 22863336.

The previous prime is 68590013. The next prime is 68590097. The reversal of 68590026 is 62009586.

68590026 is a `hidden beast` number, since 68 + 590 + 0 + 2 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44235801 + 24354225 = 6651^2 + 4935^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1905261 + ... + 1905296.

Almost surely, 268590026 is an apocalyptic number.

68590026 is an abundant number, since it is smaller than the sum of its proper divisors (80021736).

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

68590026 is a wasteful number, since it uses less digits than its factorization.

68590026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810565 (or 3810562 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 68590026 is about 8281.9095624137. The cubic root of 68590026 is about 409.3426428284.

The spelling of 68590026 in words is "sixty-eight million, five hundred ninety thousand, twenty-six".

Divisors: 1 2 3 6 9 18 3810557 7621114 11431671 22863342 34295013 68590026