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25145132 = 2219330857
BaseRepresentation
bin101111111101…
…0111100101100
31202022111122012
41133322330230
522414121012
62254540352
7423505265
oct137727454
952274565
1025145132
1113214a01
1285076b8
13529529c
1434a796c
15231a622
hex17faf2c

25145132 has 12 divisors (see below), whose sum is σ = 46320120. Its totient is φ = 11910816.

The previous prime is 25145129. The next prime is 25145143. The reversal of 25145132 is 23154152.

It is a junction number, because it is equal to n+sod(n) for n = 25145098 and 25145107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165353 + ... + 165504.

It is an arithmetic number, because the mean of its divisors is an integer number (3860010).

Almost surely, 225145132 is an apocalyptic number.

It is an amenable number.

25145132 is a deficient number, since it is larger than the sum of its proper divisors (21174988).

25145132 is a wasteful number, since it uses less digits than its factorization.

25145132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330880 (or 330878 counting only the distinct ones).

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

The square root of 25145132 is about 5014.4921976208. The cubic root of 25145132 is about 292.9665071385.

Adding to 25145132 its reverse (23154152), we get a palindrome (48299284).

The spelling of 25145132 in words is "twenty-five million, one hundred forty-five thousand, one hundred thirty-two".

Divisors: 1 2 4 19 38 76 330857 661714 1323428 6286283 12572566 25145132