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2538253 = 17149309
BaseRepresentation
bin1001101011101100001101
311202221211101
421223230031
51122211003
6130223101
730401104
oct11535415
94687741
102538253
111484033
12a24a91
136ab433
144a103b
1535211d
hex26bb0d

2538253 has 4 divisors (see below), whose sum is σ = 2687580. Its totient is φ = 2388928.

The previous prime is 2538241. The next prime is 2538281. The reversal of 2538253 is 3528352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1483524 + 1054729 = 1218^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 2538253 - 29 = 2537741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74638 + ... + 74671.

It is an arithmetic number, because the mean of its divisors is an integer number (671895).

22538253 is an apocalyptic number.

It is an amenable number.

2538253 is a deficient number, since it is larger than the sum of its proper divisors (149327).

2538253 is a wasteful number, since it uses less digits than its factorization.

2538253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149326.

The product of its digits is 7200, while the sum is 28.

The square root of 2538253 is about 1593.1895681305. The cubic root of 2538253 is about 136.4096106666.

Subtracting 2538253 from its reverse (3528352), we obtain a palindrome (990099).

It can be divided in two parts, 253825 and 3, that added together give a triangular number (253828 = T712).

The spelling of 2538253 in words is "two million, five hundred thirty-eight thousand, two hundred fifty-three".

Divisors: 1 17 149309 2538253