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25252434 = 2326720939
BaseRepresentation
bin110000001010…
…1001001010010
31202111221211100
41200111021102
522431034214
62301125230
7424433154
oct140251122
952457740
1025252434
1113288589
128559816
13530208c
1434d4ad4
15233c309
hex1815252

25252434 has 24 divisors (see below), whose sum is σ = 55532880. Its totient is φ = 8291448.

The previous prime is 25252363. The next prime is 25252439. The reversal of 25252434 is 43425252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25252398 and 25252407.

It is not an unprimeable number, because it can be changed into a prime (25252439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9264 + ... + 11675.

It is an arithmetic number, because the mean of its divisors is an integer number (2313870).

Almost surely, 225252434 is an apocalyptic number.

25252434 is an abundant number, since it is smaller than the sum of its proper divisors (30280446).

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

25252434 is a wasteful number, since it uses less digits than its factorization.

25252434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21014 (or 21011 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 25252434 is about 5025.1799967762. The cubic root of 25252434 is about 293.3826417913.

Adding to 25252434 its reverse (43425252), we get a palindrome (68677686).

The spelling of 25252434 in words is "twenty-five million, two hundred fifty-two thousand, four hundred thirty-four".

Divisors: 1 2 3 6 9 18 67 134 201 402 603 1206 20939 41878 62817 125634 188451 376902 1402913 2805826 4208739 8417478 12626217 25252434