Search a number
-
+
54220430042 = 2109283387793
BaseRepresentation
bin110010011111110010…
…100001101011011010
312011221201022020020122
4302133302201223122
51342020412230132
640524123553242
73626430023342
oct623762415332
9164851266218
1054220430042
1120aa4023669
12a61238b822
13516124c7cc
1428a5063d22
15162515c912
hexc9fca1ada

54220430042 has 16 divisors (see below), whose sum is σ = 82106704680. Its totient is φ = 26851709952.

The previous prime is 54220429997. The next prime is 54220430057. The reversal of 54220430042 is 24003402245.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30303498241 + 23916931801 = 174079^2 + 154651^2 .

It is a super-2 number, since 2×542204300422 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54220429993 and 54220430020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573698 + ... + 661490.

Almost surely, 254220430042 is an apocalyptic number.

54220430042 is a deficient number, since it is larger than the sum of its proper divisors (27886274638).

54220430042 is a wasteful number, since it uses less digits than its factorization.

54220430042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90737.

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 54220430042 its reverse (24003402245), we get a palindrome (78223832287).

The spelling of 54220430042 in words is "fifty-four billion, two hundred twenty million, four hundred thirty thousand, forty-two".

Divisors: 1 2 109 218 2833 5666 87793 175586 308797 617594 9569437 19138874 248717569 497435138 27110215021 54220430042