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3838681 = 71149853
BaseRepresentation
bin1110101001001011011001
321020000200101
432221023121
51440314211
6214135401
744425330
oct16511331
97200611
103838681
112192070
121351561
13a45312
1471cd17
1550c5c1
hex3a92d9

3838681 has 8 divisors (see below), whose sum is σ = 4785984. Its totient is φ = 2991120.

The previous prime is 3838661. The next prime is 3838711. The reversal of 3838681 is 1868383.

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

It is not a de Polignac number, because 3838681 - 221 = 1741529 is a prime.

It is a super-2 number, since 2×38386812 = 29470943639522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3838681.

It is not an unprimeable number, because it can be changed into a prime (3838621) 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, 24850 + ... + 25003.

It is an arithmetic number, because the mean of its divisors is an integer number (598248).

Almost surely, 23838681 is an apocalyptic number.

It is an amenable number.

3838681 is a deficient number, since it is larger than the sum of its proper divisors (947303).

3838681 is a wasteful number, since it uses less digits than its factorization.

3838681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49871.

The product of its digits is 27648, while the sum is 37.

The square root of 3838681 is about 1959.2552156368. The cubic root of 3838681 is about 156.5767740434.

The spelling of 3838681 in words is "three million, eight hundred thirty-eight thousand, six hundred eighty-one".

Divisors: 1 7 11 77 49853 348971 548383 3838681