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25850030 = 2517732083
BaseRepresentation
bin110001010011…
…1000010101110
31210122022120112
41202213002232
523104200110
62322020022
7432502343
oct142470256
953568515
1025850030
1113656568
1287a7612
13548109b
14360c7ca
152409405
hex18a70ae

25850030 has 32 divisors (see below), whose sum is σ = 49965984. Its totient is φ = 9593856.

The previous prime is 25850029. The next prime is 25850039. The reversal of 25850030 is 3005852.

It is a junction number, because it is equal to n+sod(n) for n = 25849978 and 25850005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25850039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11369 + ... + 13451.

It is an arithmetic number, because the mean of its divisors is an integer number (1561437).

Almost surely, 225850030 is an apocalyptic number.

25850030 is a deficient number, since it is larger than the sum of its proper divisors (24115954).

25850030 is a wasteful number, since it uses less digits than its factorization.

25850030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 25850030 is about 5084.2924778183. The cubic root of 25850030 is about 295.6789113181.

Adding to 25850030 its reverse (3005852), we get a palindrome (28855882).

The spelling of 25850030 in words is "twenty-five million, eight hundred fifty thousand, thirty".

Divisors: 1 2 5 10 17 34 73 85 146 170 365 730 1241 2083 2482 4166 6205 10415 12410 20830 35411 70822 152059 177055 304118 354110 760295 1520590 2585003 5170006 12925015 25850030