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54204310421 = 509106491769
BaseRepresentation
bin110010011110110101…
…000010001110010101
312011220120222021021122
4302132311002032111
51342002300413141
640522350253325
73626143015352
oct623665021625
9164816867248
1054204310421
1120a95a13768
12a608ab7245
13515aac7681
1428a2c69629
151623a2664b
hexc9ed42395

54204310421 has 4 divisors (see below), whose sum is σ = 54310802700. Its totient is φ = 54097818144.

The previous prime is 54204310411. The next prime is 54204310481. The reversal of 54204310421 is 12401340245.

54204310421 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.

It can be written as a sum of positive squares in 2 ways, for example, as 15950427025 + 38253883396 = 126295^2 + 195586^2 .

It is a cyclic number.

It is not a de Polignac number, because 54204310421 - 226 = 54137201557 is a prime.

It is a super-2 number, since 2×542043104212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54204310411) 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, 53245376 + ... + 53246393.

It is an arithmetic number, because the mean of its divisors is an integer number (13577700675).

Almost surely, 254204310421 is an apocalyptic number.

It is an amenable number.

54204310421 is a deficient number, since it is larger than the sum of its proper divisors (106492279).

54204310421 is a wasteful number, since it uses less digits than its factorization.

54204310421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106492278.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 54204310421 its reverse (12401340245), we get a palindrome (66605650666).

The spelling of 54204310421 in words is "fifty-four billion, two hundred four million, three hundred ten thousand, four hundred twenty-one".

Divisors: 1 509 106491769 54204310421