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53402641 = 531007597
BaseRepresentation
bin1100101110110…
…1110000010001
310201111010122121
43023231300101
5102132341031
65144334241
71215625555
oct313556021
9121433577
1053402641
1128165216
1215a74381
13b0aa0c6
147141865
154a4d011
hex32edc11

53402641 has 4 divisors (see below), whose sum is σ = 54410292. Its totient is φ = 52394992.

The previous prime is 53402617. The next prime is 53402663. The reversal of 53402641 is 14620435.

53402641 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: 14620435 = 52924087.

It can be written as a sum of positive squares in 2 ways, for example, as 21818241 + 31584400 = 4671^2 + 5620^2 .

It is a cyclic number.

It is not a de Polignac number, because 53402641 - 213 = 53394449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53409641) 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 3 ways as a sum of consecutive naturals, for example, 503746 + ... + 503851.

It is an arithmetic number, because the mean of its divisors is an integer number (13602573).

Almost surely, 253402641 is an apocalyptic number.

It is an amenable number.

53402641 is a deficient number, since it is larger than the sum of its proper divisors (1007651).

53402641 is a wasteful number, since it uses less digits than its factorization.

53402641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007650.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 53402641 is about 7307.7110643484. The cubic root of 53402641 is about 376.5773935019.

The spelling of 53402641 in words is "fifty-three million, four hundred two thousand, six hundred forty-one".

Divisors: 1 53 1007597 53402641