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25240303 = 1119120767
BaseRepresentation
bin110000001001…
…0001011101111
31202111100012001
41200102023233
522430142203
62300553131
7424352614
oct140221357
952440161
1025240303
111327a460
1285527a7
1352c96ba
1434d050b
15233891d
hex18122ef

25240303 has 8 divisors (see below), whose sum is σ = 28984320. Its totient is φ = 21737880.

The previous prime is 25240283. The next prime is 25240321. The reversal of 25240303 is 30304252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25240303 - 221 = 23143151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25240333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60175 + ... + 60592.

It is an arithmetic number, because the mean of its divisors is an integer number (3623040).

Almost surely, 225240303 is an apocalyptic number.

25240303 is a deficient number, since it is larger than the sum of its proper divisors (3744017).

25240303 is a wasteful number, since it uses less digits than its factorization.

25240303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120797.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 25240303 is about 5023.9728303405. The cubic root of 25240303 is about 293.3356549690.

Adding to 25240303 its reverse (30304252), we get a palindrome (55544555).

The spelling of 25240303 in words is "twenty-five million, two hundred forty thousand, three hundred three".

Divisors: 1 11 19 209 120767 1328437 2294573 25240303