Search a number
-
+
53447 = 192997
BaseRepresentation
bin1101000011000111
32201022112
431003013
53202242
61051235
7311552
oct150307
981275
1053447
1137179
1226b1b
131b434
1415699
1510c82
hexd0c7

53447 has 8 divisors (see below), whose sum is σ = 58800. Its totient is φ = 48384.

The previous prime is 53441. The next prime is 53453. The reversal of 53447 is 74435.

53447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53441) and next prime (53453).

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-53447 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53441) 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, 503 + ... + 599.

It is an arithmetic number, because the mean of its divisors is an integer number (7350).

253447 is an apocalyptic number.

53447 is a deficient number, since it is larger than the sum of its proper divisors (5353).

53447 is a wasteful number, since it uses less digits than its factorization.

53447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145.

The product of its digits is 1680, while the sum is 23.

The square root of 53447 is about 231.1860722448. The cubic root of 53447 is about 37.6681632875.

The spelling of 53447 in words is "fifty-three thousand, four hundred forty-seven".

Divisors: 1 19 29 97 551 1843 2813 53447