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54144355451 = 431259171057
BaseRepresentation
bin110010011011010000…
…010100110001111011
312011202102011020112012
4302123100110301323
51341341423333301
640512405240135
73624514266464
oct623320246173
9164672136465
1054144355451
1120a650936aa
12a5b0a0304b
13514b565064
142898cddd6b
15161d631ebb
hexc9b414c7b

54144355451 has 4 divisors (see below), whose sum is σ = 55403526552. Its totient is φ = 52885184352.

The previous prime is 54144355429. The next prime is 54144355471. The reversal of 54144355451 is 15455344145.

54144355451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15455344145 = 53091068829.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54144355451 is a prime.

It is a super-2 number, since 2×541443554512 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54144355399 and 54144355408.

It is not an unprimeable number, because it can be changed into a prime (54144355471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629585486 + ... + 629585571.

It is an arithmetic number, because the mean of its divisors is an integer number (13850881638).

Almost surely, 254144355451 is an apocalyptic number.

54144355451 is a deficient number, since it is larger than the sum of its proper divisors (1259171101).

54144355451 is a wasteful number, since it uses less digits than its factorization.

54144355451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259171100.

The product of its digits is 480000, while the sum is 41.

Adding to 54144355451 its reverse (15455344145), we get a palindrome (69599699596).

The spelling of 54144355451 in words is "fifty-four billion, one hundred forty-four million, three hundred fifty-five thousand, four hundred fifty-one".

Divisors: 1 43 1259171057 54144355451