Search a number
-
+
54551071 = 1921371103
BaseRepresentation
bin1101000000011…
…0001000011111
310210122111000001
43100012020133
5102431113241
65225115131
71231451011
oct320061037
9123574001
1054551071
112887a033
1216328aa7
13b3bca53
1473601b1
154bc8431
hex340621f

54551071 has 12 divisors (see below), whose sum is σ = 58046112. Its totient is φ = 51256224.

The previous prime is 54551069. The next prime is 54551083. The reversal of 54551071 is 17015545.

It is not a de Polignac number, because 54551071 - 21 = 54551069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54551171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48906 + ... + 50008.

It is an arithmetic number, because the mean of its divisors is an integer number (4837176).

Almost surely, 254551071 is an apocalyptic number.

54551071 is a deficient number, since it is larger than the sum of its proper divisors (3495041).

54551071 is a wasteful number, since it uses less digits than its factorization.

54551071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 54551071 is about 7385.8696847426. The cubic root of 54551071 is about 379.2577176553.

The spelling of 54551071 in words is "fifty-four million, five hundred fifty-one thousand, seventy-one".

Divisors: 1 19 137 361 1103 2603 20957 49457 151111 398183 2871109 54551071