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25782068 = 22131014909
BaseRepresentation
bin110001001011…
…0011100110100
31210111212100102
41202112130310
523100011233
62320333232
7432100244
oct142263464
953455312
1025782068
111360a4a4
128774218
135459180
1435d1b24
1523e41e8
hex1896734

25782068 has 24 divisors (see below), whose sum is σ = 49080360. Its totient is φ = 11779200.

The previous prime is 25782059. The next prime is 25782089. The reversal of 25782068 is 86028752.

It can be written as a sum of positive squares in 4 ways, for example, as 14303524 + 11478544 = 3782^2 + 3388^2 .

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, 2798 + ... + 7706.

It is an arithmetic number, because the mean of its divisors is an integer number (2045015).

Almost surely, 225782068 is an apocalyptic number.

It is an amenable number.

25782068 is a deficient number, since it is larger than the sum of its proper divisors (23298292).

25782068 is a wasteful number, since it uses less digits than its factorization.

25782068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027 (or 5025 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 25782068 is about 5077.6045533302. The cubic root of 25782068 is about 295.4195619558.

The spelling of 25782068 in words is "twenty-five million, seven hundred eighty-two thousand, sixty-eight".

Divisors: 1 2 4 13 26 52 101 202 404 1313 2626 4909 5252 9818 19636 63817 127634 255268 495809 991618 1983236 6445517 12891034 25782068