Search a number
-
+
55148941 = 61214821
BaseRepresentation
bin1101001001100…
…0000110001101
310211202212010101
43102120012031
5103104231231
65250011101
71236521041
oct322300615
9124685111
1055148941
1129148241
1216576a91
13b56bc13
147478021
154c95661
hex349818d

55148941 has 6 divisors (see below), whose sum is σ = 56071626. Its totient is φ = 54241200.

The previous prime is 55148927. The next prime is 55148953. The reversal of 55148941 is 14984155.

It can be written as a sum of positive squares in 3 ways, for example, as 3164841 + 51984100 = 1779^2 + 7210^2 .

It is not a de Polignac number, because 55148941 - 219 = 54624653 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 55148941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55148921) 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 5 ways as a sum of consecutive naturals, for example, 3690 + ... + 11131.

It is an arithmetic number, because the mean of its divisors is an integer number (9345271).

Almost surely, 255148941 is an apocalyptic number.

It is an amenable number.

55148941 is a deficient number, since it is larger than the sum of its proper divisors (922685).

55148941 is an equidigital number, since it uses as much as digits as its factorization.

55148941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14943 (or 14882 counting only the distinct ones).

The product of its digits is 28800, while the sum is 37.

The square root of 55148941 is about 7426.2332982475. The cubic root of 55148941 is about 380.6382188170.

It can be divided in two parts, 55 and 148941, that added together give a square (148996 = 3862).

The spelling of 55148941 in words is "fifty-five million, one hundred forty-eight thousand, nine hundred forty-one".

Divisors: 1 61 3721 14821 904081 55148941