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54415 = 510883
BaseRepresentation
bin1101010010001111
32202122101
431102033
53220130
61055531
7314434
oct152217
982571
1054415
1137979
12275a7
131b9ca
1415b8b
15111ca
hexd48f

54415 has 4 divisors (see below), whose sum is σ = 65304. Its totient is φ = 43528.

The previous prime is 54413. The next prime is 54419. The reversal of 54415 is 51445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51445 = 510289.

It is a cyclic number.

It is not a de Polignac number, because 54415 - 21 = 54413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54392 and 54401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5437 + ... + 5446.

It is an arithmetic number, because the mean of its divisors is an integer number (16326).

254415 is an apocalyptic number.

54415 is a deficient number, since it is larger than the sum of its proper divisors (10889).

54415 is a wasteful number, since it uses less digits than its factorization.

54415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10888.

The product of its digits is 400, while the sum is 19.

The square root of 54415 is about 233.2702295622. The cubic root of 54415 is about 37.8942117712.

The spelling of 54415 in words is "fifty-four thousand, four hundred fifteen".

Divisors: 1 5 10883 54415