Search a number
-
+
2147025 = 35228627
BaseRepresentation
bin1000001100001011010001
311001002011110
420030023101
51022201100
6114003533
724151356
oct10141321
94032143
102147025
111237101
128765a9
135a233a
143dc62d
152c6250
hex20c2d1

2147025 has 12 divisors (see below), whose sum is σ = 3549872. Its totient is φ = 1145040.

The previous prime is 2147023. The next prime is 2147039. The reversal of 2147025 is 5207412.

It is not a de Polignac number, because 2147025 - 21 = 2147023 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2146992 and 2147010.

It is not an unprimeable number, because it can be changed into a prime (2147021) 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, 14239 + ... + 14388.

22147025 is an apocalyptic number.

2147025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2147025 is a deficient number, since it is larger than the sum of its proper divisors (1402847).

2147025 is a wasteful number, since it uses less digits than its factorization.

2147025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28640 (or 28635 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2147025 is about 1465.2730121039. The cubic root of 2147025 is about 129.0067300136.

The spelling of 2147025 in words is "two million, one hundred forty-seven thousand, twenty-five".

Divisors: 1 3 5 15 25 75 28627 85881 143135 429405 715675 2147025