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53440877 = 717449083
BaseRepresentation
bin1100101111011…
…1000101101101
310201120002002202
43023313011231
5102140102002
65145231245
71216145210
oct313670555
9121502082
1053440877
1128190a16
1215a92525
13b0c1629
147151777
154a59502
hex32f716d

53440877 has 8 divisors (see below), whose sum is σ = 64668096. Its totient is φ = 43111872.

The previous prime is 53440859. The next prime is 53440879. The reversal of 53440877 is 77804435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53440877 - 210 = 53439853 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 53440877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53440879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224423 + ... + 224660.

It is an arithmetic number, because the mean of its divisors is an integer number (8083512).

Almost surely, 253440877 is an apocalyptic number.

It is an amenable number.

53440877 is a deficient number, since it is larger than the sum of its proper divisors (11227219).

53440877 is a wasteful number, since it uses less digits than its factorization.

53440877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449107.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 53440877 is about 7310.3267368839. The cubic root of 53440877 is about 376.6672478476.

The spelling of 53440877 in words is "fifty-three million, four hundred forty thousand, eight hundred seventy-seven".

Divisors: 1 7 17 119 449083 3143581 7634411 53440877