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25230315 = 3511213901
BaseRepresentation
bin110000000111…
…1101111101011
31202110211111010
41200033233223
522424332230
62300435003
7424311525
oct140175753
952424433
1025230315
1113272a00
128548a63
1352c4ca6
1434caa15
1523359b0
hex180fbeb

25230315 has 24 divisors (see below), whose sum is σ = 44375184. Its totient is φ = 12232000.

The previous prime is 25230313. The next prime is 25230323. The reversal of 25230315 is 51303252.

It is not a de Polignac number, because 25230315 - 21 = 25230313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25230291 and 25230300.

It is not an unprimeable number, because it can be changed into a prime (25230313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5136 + ... + 8765.

It is an arithmetic number, because the mean of its divisors is an integer number (1848966).

Almost surely, 225230315 is an apocalyptic number.

25230315 is a deficient number, since it is larger than the sum of its proper divisors (19144869).

25230315 is a wasteful number, since it uses less digits than its factorization.

25230315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13931 (or 13920 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 25230315 is about 5022.9786979441. The cubic root of 25230315 is about 293.2969572948.

Adding to 25230315 its reverse (51303252), we get a palindrome (76533567).

The spelling of 25230315 in words is "twenty-five million, two hundred thirty thousand, three hundred fifteen".

Divisors: 1 3 5 11 15 33 55 121 165 363 605 1815 13901 41703 69505 152911 208515 458733 764555 1682021 2293665 5046063 8410105 25230315