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53291242 = 289299389
BaseRepresentation
bin1100101101001…
…0100011101010
310201021110211201
43023102203222
5102120304432
65142114414
71214653024
oct313224352
9121243751
1053291242
1128099554
1215a1ba0a
13b06b4a4
147113014
154a29ee7
hex32d28ea

53291242 has 8 divisors (see below), whose sum is σ = 80835300. Its totient is φ = 26346144.

The previous prime is 53291237. The next prime is 53291261. The reversal of 53291242 is 24219235.

53291242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52867441 + 423801 = 7271^2 + 651^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 53291242.

It is an unprimeable number.

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, 149517 + ... + 149872.

Almost surely, 253291242 is an apocalyptic number.

53291242 is a deficient number, since it is larger than the sum of its proper divisors (27544058).

53291242 is a wasteful number, since it uses less digits than its factorization.

53291242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299480.

The product of its digits is 4320, while the sum is 28.

The square root of 53291242 is about 7300.0850679975. The cubic root of 53291242 is about 376.3153618378.

The spelling of 53291242 in words is "fifty-three million, two hundred ninety-one thousand, two hundred forty-two".

Divisors: 1 2 89 178 299389 598778 26645621 53291242