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53105455 = 5134119927
BaseRepresentation
bin1100101010010…
…1001100101111
310200221000222201
43022211030233
5102043333310
65134122331
71213250254
oct312451457
9120830881
1053105455
1127a81a07
12159503a7
13b004a60
1470a542b
1549dee3a
hex32a532f

53105455 has 16 divisors (see below), whose sum is σ = 70305984. Its totient is φ = 38257920.

The previous prime is 53105453. The next prime is 53105477. The reversal of 53105455 is 55450135.

It is not a de Polignac number, because 53105455 - 21 = 53105453 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 (53105453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7299 + ... + 12628.

It is an arithmetic number, because the mean of its divisors is an integer number (4394124).

Almost surely, 253105455 is an apocalyptic number.

53105455 is a deficient number, since it is larger than the sum of its proper divisors (17200529).

53105455 is a wasteful number, since it uses less digits than its factorization.

53105455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19986.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 53105455 is about 7287.3489692755. The cubic root of 53105455 is about 375.8775418891.

The spelling of 53105455 in words is "fifty-three million, one hundred five thousand, four hundred fifty-five".

Divisors: 1 5 13 41 65 205 533 2665 19927 99635 259051 817007 1295255 4085035 10621091 53105455