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53401211 = 67797033
BaseRepresentation
bin1100101110110…
…1011001111011
310201111001200122
43023231121323
5102132314321
65144323455
71215621443
oct313553173
9121431618
1053401211
1128164136
1215a7358b
13b0a9566
147141123
154a4c8ab
hex32ed67b

53401211 has 4 divisors (see below), whose sum is σ = 54198312. Its totient is φ = 52604112.

The previous prime is 53401207. The next prime is 53401213. The reversal of 53401211 is 11210435.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53401211 - 22 = 53401207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53401211.

It is not an unprimeable number, because it can be changed into a prime (53401213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398450 + ... + 398583.

It is an arithmetic number, because the mean of its divisors is an integer number (13549578).

Almost surely, 253401211 is an apocalyptic number.

53401211 is a deficient number, since it is larger than the sum of its proper divisors (797101).

53401211 is an equidigital number, since it uses as much as digits as its factorization.

53401211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797100.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 53401211 is about 7307.6132218393. The cubic root of 53401211 is about 376.5740321796.

Adding to 53401211 its reverse (11210435), we get a palindrome (64611646).

The spelling of 53401211 in words is "fifty-three million, four hundred one thousand, two hundred eleven".

Divisors: 1 67 797033 53401211