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25203412 = 22132511931
BaseRepresentation
bin110000000100…
…1001011010100
31202102110120201
41200021023110
522423002122
62300110244
7424140223
oct140111324
952373521
1025203412
1113254773
128535384
1352b5980
1434c0cba
15232ca27
hex18092d4

25203412 has 24 divisors (see below), whose sum is σ = 47712672. Its totient is φ = 11580000.

The previous prime is 25203391. The next prime is 25203419. The reversal of 25203412 is 21430252.

It is a self number, because there is not a number n which added to its sum of digits gives 25203412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25203419) 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, 12087 + ... + 14017.

It is an arithmetic number, because the mean of its divisors is an integer number (1988028).

Almost surely, 225203412 is an apocalyptic number.

It is an amenable number.

25203412 is a deficient number, since it is larger than the sum of its proper divisors (22509260).

25203412 is a wasteful number, since it uses less digits than its factorization.

25203412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 25203412 is about 5020.2999910364. The cubic root of 25203412 is about 293.1926730337.

Adding to 25203412 its reverse (21430252), we get a palindrome (46633664).

The spelling of 25203412 in words is "twenty-five million, two hundred three thousand, four hundred twelve".

Divisors: 1 2 4 13 26 52 251 502 1004 1931 3263 3862 6526 7724 13052 25103 50206 100412 484681 969362 1938724 6300853 12601706 25203412