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8481393 = 322393943
BaseRepresentation
bin100000010110…
…101001110001
3120221220021200
4200112221301
54132401033
6501441413
7132043044
oct40265161
916856250
108481393
114873218
122a10269
1319ac59b
1411aac5b
15b28013
hex816a71

8481393 has 12 divisors (see below), whose sum is σ = 12305280. Its totient is φ = 5629176.

The previous prime is 8481377. The next prime is 8481397. The reversal of 8481393 is 3931848.

It is not a de Polignac number, because 8481393 - 24 = 8481377 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8481397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180 + ... + 4122.

It is an arithmetic number, because the mean of its divisors is an integer number (1025440).

Almost surely, 28481393 is an apocalyptic number.

It is an amenable number.

8481393 is a deficient number, since it is larger than the sum of its proper divisors (3823887).

8481393 is a wasteful number, since it uses less digits than its factorization.

8481393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188 (or 4185 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 8481393 is about 2912.2831249726. The cubic root of 8481393 is about 203.9337299160.

The spelling of 8481393 in words is "eight million, four hundred eighty-one thousand, three hundred ninety-three".

Divisors: 1 3 9 239 717 2151 3943 11829 35487 942377 2827131 8481393