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12025971 = 3210312973
BaseRepresentation
bin101101111000…
…000001110011
3211121222112100
4231320001303
511034312341
61105431443
7204135066
oct55700163
924558470
1012025971
116874321
12403b583
132650a79
1418508dd
1510c83b6
hexb78073

12025971 has 12 divisors (see below), whose sum is σ = 17540848. Its totient is φ = 7938864.

The previous prime is 12025961. The next prime is 12025973. The reversal of 12025971 is 17952021.

12025971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12025971 - 211 = 12023923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12025973) 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, 5560 + ... + 7413.

Almost surely, 212025971 is an apocalyptic number.

12025971 is the 1854-th nonagonal number.

12025971 is a deficient number, since it is larger than the sum of its proper divisors (5514877).

12025971 is a wasteful number, since it uses less digits than its factorization.

12025971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13082 (or 13079 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 12025971 is about 3467.8481800679. The cubic root of 12025971 is about 229.1078926889.

Adding to 12025971 its reverse (17952021), we get a palindrome (29977992).

It can be divided in two parts, 12025 and 971, that added together give a square (12996 = 1142).

The spelling of 12025971 in words is "twelve million, twenty-five thousand, nine hundred seventy-one".

Divisors: 1 3 9 103 309 927 12973 38919 116757 1336219 4008657 12025971