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6838538 = 272312251
BaseRepresentation
bin11010000101100100001010
3110212102201012
4122011210022
53222313123
6402323522
7112061300
oct32054412
913772635
106838538
113950993
1223595a2
131555895
14ca0270
15901378
hex68590a

6838538 has 24 divisors (see below), whose sum is σ = 12322944. Its totient is φ = 2835000.

The previous prime is 6838529. The next prime is 6838541. The reversal of 6838538 is 8358386.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6838495 and 6838504.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1913 + ... + 4163.

It is an arithmetic number, because the mean of its divisors is an integer number (513456).

Almost surely, 26838538 is an apocalyptic number.

6838538 is a deficient number, since it is larger than the sum of its proper divisors (5484406).

6838538 is a wasteful number, since it uses less digits than its factorization.

6838538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298 (or 2291 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 6838538 is about 2615.0598463515. The cubic root of 6838538 is about 189.8108736710.

The spelling of 6838538 in words is "six million, eight hundred thirty-eight thousand, five hundred thirty-eight".

Divisors: 1 2 7 14 31 49 62 98 217 434 1519 2251 3038 4502 15757 31514 69781 110299 139562 220598 488467 976934 3419269 6838538