Search a number
-
+
55163744 = 253746591
BaseRepresentation
bin1101001001101…
…1101101100000
310211210121102122
43102123231200
5103110214434
65250203412
71236612146
oct322335540
9124717378
1055163744
1129158379
1216583568
13b57588c
14747d596
154c99c2e
hex349bb60

55163744 has 24 divisors (see below), whose sum is σ = 111541248. Its totient is φ = 26835840.

The previous prime is 55163699. The next prime is 55163749. The reversal of 55163744 is 44736155.

55163744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55163749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22112 + ... + 24479.

It is an arithmetic number, because the mean of its divisors is an integer number (4647552).

Almost surely, 255163744 is an apocalyptic number.

It is an amenable number.

55163744 is an abundant number, since it is smaller than the sum of its proper divisors (56377504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55163744 is a wasteful number, since it uses less digits than its factorization.

55163744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46638 (or 46630 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 55163744 is about 7427.2299008446. The cubic root of 55163744 is about 380.6722725594.

Adding to 55163744 its reverse (44736155), we get a palindrome (99899899).

The spelling of 55163744 in words is "fifty-five million, one hundred sixty-three thousand, seven hundred forty-four".

Divisors: 1 2 4 8 16 32 37 74 148 296 592 1184 46591 93182 186364 372728 745456 1490912 1723867 3447734 6895468 13790936 27581872 55163744