Search a number
-
+
54827421 = 3111661437
BaseRepresentation
bin1101000100100…
…1100110011101
310211011112002020
43101021212131
5103013434141
65235050353
71234011465
oct321114635
9124145066
1054827421
1128a48720
12164409b9
13b48877c
1473d2ba5
154c30266
hex344999d

54827421 has 8 divisors (see below), whose sum is σ = 79749024. Its totient is φ = 33228720.

The previous prime is 54827413. The next prime is 54827459. The reversal of 54827421 is 12472845.

54827421 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 not a de Polignac number, because 54827421 - 23 = 54827413 is a prime.

It is a super-2 number, since 2×548274212 = 6012092187022482, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1661437 = 54827421 / (5 + 4 + 8 + 2 + 7 + 4 + 2 + 1).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54827401) 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, 830686 + ... + 830751.

It is an arithmetic number, because the mean of its divisors is an integer number (9968628).

Almost surely, 254827421 is an apocalyptic number.

It is an amenable number.

54827421 is a deficient number, since it is larger than the sum of its proper divisors (24921603).

54827421 is a wasteful number, since it uses less digits than its factorization.

54827421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661451.

The product of its digits is 17920, while the sum is 33.

The square root of 54827421 is about 7404.5540716508. The cubic root of 54827421 is about 379.8970658409.

The spelling of 54827421 in words is "fifty-four million, eight hundred twenty-seven thousand, four hundred twenty-one".

Divisors: 1 3 11 33 1661437 4984311 18275807 54827421