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53428141 = 134109857
BaseRepresentation
bin1100101111001…
…1111110101101
310201112102122001
43023303332231
5102134200031
65145052301
71216063114
oct313637655
9121472561
1053428141
1128182398
1215a87091
13b0b88b0
14714ac7b
154a55861
hex32f3fad

53428141 has 4 divisors (see below), whose sum is σ = 57538012. Its totient is φ = 49318272.

The previous prime is 53428087. The next prime is 53428181. The reversal of 53428141 is 14182435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14182435 = 52836487.

It can be written as a sum of positive squares in 2 ways, for example, as 2090916 + 51337225 = 1446^2 + 7165^2 .

It is a cyclic number.

It is not a de Polignac number, because 53428141 - 215 = 53395373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53428181) 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, 2054916 + ... + 2054941.

It is an arithmetic number, because the mean of its divisors is an integer number (14384503).

Almost surely, 253428141 is an apocalyptic number.

It is an amenable number.

53428141 is a deficient number, since it is larger than the sum of its proper divisors (4109871).

53428141 is a wasteful number, since it uses less digits than its factorization.

53428141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109870.

The product of its digits is 3840, while the sum is 28.

The square root of 53428141 is about 7309.4555884826. The cubic root of 53428141 is about 376.6373230941.

The spelling of 53428141 in words is "fifty-three million, four hundred twenty-eight thousand, one hundred forty-one".

Divisors: 1 13 4109857 53428141