Search a number
-
+
55248851 = 731243191
BaseRepresentation
bin1101001011000…
…0011111010011
310211221221011202
43102300133103
5103120430401
65252101415
71240415240
oct322603723
9124857152
1055248851
1129206309
121660486b
13b5a5538
1474a25c7
154cb506b
hex34b07d3

55248851 has 24 divisors (see below), whose sum is σ = 67110912. Its totient is φ = 44528400.

The previous prime is 55248841. The next prime is 55248871. The reversal of 55248851 is 15884255.

It is not a de Polignac number, because 55248851 - 210 = 55247827 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 (55248811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289166 + ... + 289356.

It is an arithmetic number, because the mean of its divisors is an integer number (2796288).

Almost surely, 255248851 is an apocalyptic number.

55248851 is a deficient number, since it is larger than the sum of its proper divisors (11862061).

55248851 is a wasteful number, since it uses less digits than its factorization.

55248851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 272 counting only the distinct ones).

The product of its digits is 64000, while the sum is 38.

The square root of 55248851 is about 7432.9570831534. The cubic root of 55248851 is about 380.8679398932.

The spelling of 55248851 in words is "fifty-five million, two hundred forty-eight thousand, eight hundred fifty-one".

Divisors: 1 7 31 43 191 217 301 961 1333 1337 5921 6727 8213 9331 41323 41447 57491 183551 254603 289261 1284857 1782221 7892693 55248851