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20112025 = 523125951
BaseRepresentation
bin100110010111…
…0001010011001
31101211210111211
41030232022121
520122041100
61555023121
7332643433
oct114561231
941753454
1020112025
111039750a
12689aaa1
13422240b
142957653
151b741ba
hex132e299

20112025 has 12 divisors (see below), whose sum is σ = 25744384. Its totient is φ = 15570000.

The previous prime is 20112023. The next prime is 20112031. The reversal of 20112025 is 52021102.

It is not a de Polignac number, because 20112025 - 21 = 20112023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20111996 and 20112014.

It is not an unprimeable number, because it can be changed into a prime (20112023) 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, 12201 + ... + 13750.

Almost surely, 220112025 is an apocalyptic number.

20112025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20112025 is a deficient number, since it is larger than the sum of its proper divisors (5632359).

20112025 is a wasteful number, since it uses less digits than its factorization.

20112025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25992 (or 25987 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 20112025 is about 4484.6432411063. The cubic root of 20112025 is about 271.9476227362.

Adding to 20112025 its reverse (52021102), we get a palindrome (72133127).

The spelling of 20112025 in words is "twenty million, one hundred twelve thousand, twenty-five".

Divisors: 1 5 25 31 155 775 25951 129755 648775 804481 4022405 20112025