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25123030 = 252512303
BaseRepresentation
bin101111111010…
…1100011010110
31202021101022121
41133311203112
522412414110
62254250154
7423353662
oct137654326
952241277
1025123030
11131aa339
1284b695a
1352881ca
14349d8a2
152313cda
hex17f58d6

25123030 has 8 divisors (see below), whose sum is σ = 45221472. Its totient is φ = 10049208.

The previous prime is 25123001. The next prime is 25123079. The reversal of 25123030 is 3032152.

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

It is a junction number, because it is equal to n+sod(n) for n = 25122995 and 25123013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256142 + ... + 1256161.

It is an arithmetic number, because the mean of its divisors is an integer number (5652684).

Almost surely, 225123030 is an apocalyptic number.

25123030 is a deficient number, since it is larger than the sum of its proper divisors (20098442).

25123030 is a wasteful number, since it uses less digits than its factorization.

25123030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512310.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 25123030 is about 5012.2879007495. The cubic root of 25123030 is about 292.8806450077.

Adding to 25123030 its reverse (3032152), we get a palindrome (28155182).

The spelling of 25123030 in words is "twenty-five million, one hundred twenty-three thousand, thirty".

Divisors: 1 2 5 10 2512303 5024606 12561515 25123030