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42553053 = 331576039
BaseRepresentation
bin1010001001010…
…0111011011101
32222001220211000
42202110323131
541343144203
64120020513
71024460244
oct242247335
988056730
1042553053
1122024814
1212301739
138a7b92a
14591995b
153b084a3
hex2894edd

42553053 has 8 divisors (see below), whose sum is σ = 63041600. Its totient is φ = 28368684.

The previous prime is 42553037. The next prime is 42553073. The reversal of 42553053 is 35035524.

It is not a de Polignac number, because 42553053 - 24 = 42553037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1576039 = 42553053 / (4 + 2 + 5 + 5 + 3 + 0 + 5 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42553073) 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, 787993 + ... + 788046.

It is an arithmetic number, because the mean of its divisors is an integer number (7880200).

Almost surely, 242553053 is an apocalyptic number.

It is an amenable number.

42553053 is a deficient number, since it is larger than the sum of its proper divisors (20488547).

42553053 is a wasteful number, since it uses less digits than its factorization.

42553053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576048 (or 1576042 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 42553053 is about 6523.2701155172. The cubic root of 42553053 is about 349.1217518137.

Adding to 42553053 its reverse (35035524), we get a palindrome (77588577).

The spelling of 42553053 in words is "forty-two million, five hundred fifty-three thousand, fifty-three".

Divisors: 1 3 9 27 1576039 4728117 14184351 42553053