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54423205 = 5171733701
BaseRepresentation
bin1100111110011…
…0111010100101
310210101222121021
43033212322211
5102413020310
65222251141
71230406144
oct317467245
9123358537
1054423205
11287a1a61
1216286ab1
13b3767a5
14732975b
154ba05da
hex33e6ea5

54423205 has 16 divisors (see below), whose sum is σ = 69567984. Its totient is φ = 40729600.

The previous prime is 54423203. The next prime is 54423211. The reversal of 54423205 is 50232445.

It can be written as a sum of positive squares in 8 ways, for example, as 3814209 + 50608996 = 1953^2 + 7114^2 .

It is not a de Polignac number, because 54423205 - 21 = 54423203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54423205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54423203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12855 + ... + 16555.

It is an arithmetic number, because the mean of its divisors is an integer number (4347999).

Almost surely, 254423205 is an apocalyptic number.

It is an amenable number.

54423205 is a deficient number, since it is larger than the sum of its proper divisors (15144779).

54423205 is a wasteful number, since it uses less digits than its factorization.

54423205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3896.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 54423205 is about 7377.2084828884. The cubic root of 54423205 is about 378.9611630967.

The spelling of 54423205 in words is "fifty-four million, four hundred twenty-three thousand, two hundred five".

Divisors: 1 5 17 85 173 865 2941 3701 14705 18505 62917 314585 640273 3201365 10884641 54423205