Search a number
-
+
55031043 = 355732933
BaseRepresentation
bin1101000111101…
…1010100000011
310211112212101210
43101323110003
5103041443133
65243301203
71235520234
oct321732403
9124485353
1055031043
1129077701
121651a803
13b52a362
14744708b
154c70763
hex347b503

55031043 has 8 divisors (see below), whose sum is σ = 73508688. Its totient is φ = 36620384.

The previous prime is 55031017. The next prime is 55031047. The reversal of 55031043 is 34013055.

55031043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55031043 - 212 = 55026947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55031047) 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 7 ways as a sum of consecutive naturals, for example, 14796 + ... + 18137.

It is an arithmetic number, because the mean of its divisors is an integer number (9188586).

Almost surely, 255031043 is an apocalyptic number.

55031043 is a deficient number, since it is larger than the sum of its proper divisors (18477645).

55031043 is a wasteful number, since it uses less digits than its factorization.

55031043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33493.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 55031043 is about 7418.2911104917. The cubic root of 55031043 is about 380.3667811364.

Adding to 55031043 its reverse (34013055), we get a palindrome (89044098).

The spelling of 55031043 in words is "fifty-five million, thirty-one thousand, forty-three".

Divisors: 1 3 557 1671 32933 98799 18343681 55031043