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2500047 = 321125253
BaseRepresentation
bin1001100010010111001111
311201000102100
421202113033
51120000142
6125330143
730151524
oct11422717
94630370
102500047
111458360
12a06953
13696c24
1449114b
15345b4c
hex2625cf

2500047 has 12 divisors (see below), whose sum is σ = 3939624. Its totient is φ = 1515120.

The previous prime is 2500027. The next prime is 2500049. The reversal of 2500047 is 7400052.

It is a happy number.

It is not a de Polignac number, because 2500047 - 26 = 2499983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500049) 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, 12528 + ... + 12725.

It is an arithmetic number, because the mean of its divisors is an integer number (328302).

22500047 is an apocalyptic number.

2500047 is a deficient number, since it is larger than the sum of its proper divisors (1439577).

2500047 is a wasteful number, since it uses less digits than its factorization.

2500047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25270 (or 25267 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 2500047 is about 1581.1536927193. The cubic root of 2500047 is about 135.7217313419.

Adding to 2500047 its reverse (7400052), we get a palindrome (9900099).

The spelling of 2500047 in words is "two million, five hundred thousand, forty-seven".

Divisors: 1 3 9 11 33 99 25253 75759 227277 277783 833349 2500047