Search a number
-
+
3896281 = 17419547
BaseRepresentation
bin1110110111001111011001
321022221200201
432313033121
51444140111
6215302201
745055264
oct16671731
97287621
103896281
112221374
12137a961
13a655bc
14735cdb
1551e6c1
hex3b73d9

3896281 has 8 divisors (see below), whose sum is σ = 4142880. Its totient is φ = 3651648.

The previous prime is 3896257. The next prime is 3896287. The reversal of 3896281 is 1826983.

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 3896281 - 215 = 3863513 is a prime.

It is a super-2 number, since 2×38962812 = 30362011261922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3896281.

It is not an unprimeable number, because it can be changed into a prime (3896287) 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, 6850 + ... + 7396.

It is an arithmetic number, because the mean of its divisors is an integer number (517860).

Almost surely, 23896281 is an apocalyptic number.

It is an amenable number.

3896281 is a deficient number, since it is larger than the sum of its proper divisors (246599).

3896281 is a wasteful number, since it uses less digits than its factorization.

3896281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983.

The product of its digits is 20736, while the sum is 37.

The square root of 3896281 is about 1973.8999468058. The cubic root of 3896281 is about 157.3560421393.

It can be divided in two parts, 389 and 6281, that added together give a triangular number (6670 = T115).

The spelling of 3896281 in words is "three million, eight hundred ninety-six thousand, two hundred eighty-one".

Divisors: 1 17 419 547 7123 9299 229193 3896281