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BaseRepresentation
bin1011100100110000
32102000212
423210300
53004113
61003252
7255134
oct134460
972025
1047408
1132689
1223528
131876a
14133c4
15e0a8
hexb930

47408 has 10 divisors (see below), whose sum is σ = 91884. Its totient is φ = 23696.

The previous prime is 47407. The next prime is 47417. The reversal of 47408 is 80474.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (47407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1466 + ... + 1497.

247408 is an apocalyptic number.

It is an amenable number.

47408 is a deficient number, since it is larger than the sum of its proper divisors (44476).

47408 is a wasteful number, since it uses less digits than its factorization.

47408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971 (or 2965 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 47408 is about 217.7337824041. The cubic root of 47408 is about 36.1923856883.

The spelling of 47408 in words is "forty-seven thousand, four hundred eight".

Divisors: 1 2 4 8 16 2963 5926 11852 23704 47408