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8024381 = 31313827
BaseRepresentation
bin11110100111000100111101
3120002200101022
4132213010331
54023240011
6443553525
7125130461
oct36470475
916080338
108024381
114590922
12282b8a5
13187c571
1410cc4a1
15a878db
hex7a713d

8024381 has 8 divisors (see below), whose sum is σ = 8319744. Its totient is φ = 7731360.

The previous prime is 8024371. The next prime is 8024383. The reversal of 8024381 is 1834208.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8024381 is a prime.

It is a super-2 number, since 2×80243812 = 128781380866322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8024381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8024383) 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, 9290 + ... + 10116.

It is an arithmetic number, because the mean of its divisors is an integer number (1039968).

Almost surely, 28024381 is an apocalyptic number.

It is an amenable number.

8024381 is a deficient number, since it is larger than the sum of its proper divisors (295363).

8024381 is a wasteful number, since it uses less digits than its factorization.

8024381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 8024381 is about 2832.7338385383. The cubic root of 8024381 is about 200.2029689484.

Adding to 8024381 its reverse (1834208), we get a palindrome (9858589).

The spelling of 8024381 in words is "eight million, twenty-four thousand, three hundred eighty-one".

Divisors: 1 31 313 827 9703 25637 258851 8024381