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25206330 = 2351495639
BaseRepresentation
bin110000000100…
…1111000111010
31202102121120210
41200021320322
522423100310
62300131550
7424151562
oct140117072
952377523
1025206330
1113256986
128536bb6
1352b70b6
1434c1da2
15232d820
hex1809e3a

25206330 has 32 divisors (see below), whose sum is σ = 60912000. Its totient is φ = 6675392.

The previous prime is 25206329. The next prime is 25206341. The reversal of 25206330 is 3360252.

It is a junction number, because it is equal to n+sod(n) for n = 25206297 and 25206306.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1651 + ... + 7289.

It is an arithmetic number, because the mean of its divisors is an integer number (1903500).

Almost surely, 225206330 is an apocalyptic number.

25206330 is an abundant number, since it is smaller than the sum of its proper divisors (35705670).

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

25206330 is a wasteful number, since it uses less digits than its factorization.

25206330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5798.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 25206330 is about 5020.5906027080. The cubic root of 25206330 is about 293.2039876817.

Adding to 25206330 its reverse (3360252), we get a palindrome (28566582).

The spelling of 25206330 in words is "twenty-five million, two hundred six thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 149 298 447 745 894 1490 2235 4470 5639 11278 16917 28195 33834 56390 84585 169170 840211 1680422 2520633 4201055 5041266 8402110 12603165 25206330