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25350030 = 233593889
BaseRepresentation
bin110000010110…
…0111110001110
31202200220201000
41200230332032
522442200110
62303201130
7425320536
oct140547616
952626630
1025350030
1113344942
1285a61a6
135337624
14351c4c6
15235b1c0
hex182cf8e

25350030 has 32 divisors (see below), whose sum is σ = 67600800. Its totient is φ = 6759936.

The previous prime is 25350029. The next prime is 25350037. The reversal of 25350030 is 3005352.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25349985 and 25350012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25350037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46675 + ... + 47214.

It is an arithmetic number, because the mean of its divisors is an integer number (2112525).

Almost surely, 225350030 is an apocalyptic number.

25350030 is an abundant number, since it is smaller than the sum of its proper divisors (42250770).

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

25350030 is a wasteful number, since it uses less digits than its factorization.

25350030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93905 (or 93899 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 25350030 is about 5034.8813292867. The cubic root of 25350030 is about 293.7601125235.

Adding to 25350030 its reverse (3005352), we get a palindrome (28355382).

The spelling of 25350030 in words is "twenty-five million, three hundred fifty thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 93889 187778 281667 469445 563334 845001 938890 1408335 1690002 2535003 2816670 4225005 5070006 8450010 12675015 25350030