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25760830 = 256738449
BaseRepresentation
bin110001001000…
…1010000111110
31210110210012211
41202101100332
523043321310
62320051034
7431651314
oct142212076
953423184
1025760830
11135a5547
128763a7a
13544c5c4
1435c80b4
1523dcc8a
hex189143e

25760830 has 16 divisors (see below), whose sum is σ = 47062800. Its totient is φ = 10150272.

The previous prime is 25760773. The next prime is 25760837. The reversal of 25760830 is 3806752.

It is a junction number, because it is equal to n+sod(n) for n = 25760792 and 25760801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25760837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18555 + ... + 19894.

It is an arithmetic number, because the mean of its divisors is an integer number (2941425).

Almost surely, 225760830 is an apocalyptic number.

25760830 is a deficient number, since it is larger than the sum of its proper divisors (21301970).

25760830 is a wasteful number, since it uses less digits than its factorization.

25760830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38523.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 25760830 is about 5075.5127819758. The cubic root of 25760830 is about 295.3384223020.

The spelling of 25760830 in words is "twenty-five million, seven hundred sixty thousand, eight hundred thirty".

Divisors: 1 2 5 10 67 134 335 670 38449 76898 192245 384490 2576083 5152166 12880415 25760830