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12500289 = 325632467
BaseRepresentation
bin101111101011…
…110101000001
3212112002011200
4233223311001
511200002124
61123531413
7211151664
oct57536501
925462150
1012500289
11706871a
124229b69
132788929
1419356db
15116dbc9
hexbebd41

12500289 has 12 divisors (see below), whose sum is σ = 18095376. Its totient is φ = 8315352.

The previous prime is 12500263. The next prime is 12500329. The reversal of 12500289 is 98200521.

12500289 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12500289 - 216 = 12434753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12500989) 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, 3834 + ... + 6300.

It is an arithmetic number, because the mean of its divisors is an integer number (1507948).

Almost surely, 212500289 is an apocalyptic number.

It is an amenable number.

12500289 is a deficient number, since it is larger than the sum of its proper divisors (5595087).

12500289 is a wasteful number, since it uses less digits than its factorization.

12500289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036 (or 3033 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 12500289 is about 3535.5747764685. The cubic root of 12500289 is about 232.0812302258.

The spelling of 12500289 in words is "twelve million, five hundred thousand, two hundred eighty-nine".

Divisors: 1 3 9 563 1689 2467 5067 7401 22203 1388921 4166763 12500289