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2639253 = 33832297
BaseRepresentation
bin1010000100010110010101
311222002101010
422010112111
51133424003
6132322433
731301421
oct12042625
94862333
102639253
111542a01
12a73419
137153b6
144c9b81
15372003
hex284595

2639253 has 8 divisors (see below), whose sum is σ = 3529728. Its totient is φ = 1754144.

The previous prime is 2639251. The next prime is 2639291. The reversal of 2639253 is 3529362.

2639253 is a nontrivial binomial coefficient, being equal to C(2298, 2).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2639253 - 21 = 2639251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2639253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 2297.

It is an arithmetic number, because the mean of its divisors is an integer number (441216).

22639253 is an apocalyptic number.

2639253 is the 2297-th triangular number and also the 1149-th hexagonal number.

It is an amenable number.

2639253 is a deficient number, since it is larger than the sum of its proper divisors (890475).

2639253 is a wasteful number, since it uses less digits than its factorization.

2639253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683.

The product of its digits is 9720, while the sum is 30.

The square root of 2639253 is about 1624.5777913046. The cubic root of 2639253 is about 138.1954277994.

The spelling of 2639253 in words is "two million, six hundred thirty-nine thousand, two hundred fifty-three".

Divisors: 1 3 383 1149 2297 6891 879751 2639253