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53244351 = 331972013
BaseRepresentation
bin1100101100011…
…1000110111111
310201012002112000
43023013012333
5102112304401
65141113343
71214366226
oct313070677
9121162460
1053244351
11280672a6
12159b8853
13b053044
1470ddcbd
154a1b186
hex32c71bf

53244351 has 8 divisors (see below), whose sum is σ = 78880560. Its totient is φ = 35496216.

The previous prime is 53244343. The next prime is 53244353. The reversal of 53244351 is 15344235.

It is not a de Polignac number, because 53244351 - 23 = 53244343 is a prime.

It is a super-2 number, since 2×532443512 = 5669921826822402, which contains 22 as substring.

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: 1972013 = 53244351 / (5 + 3 + 2 + 4 + 4 + 3 + 5 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53244353) 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, 985980 + ... + 986033.

It is an arithmetic number, because the mean of its divisors is an integer number (9860070).

Almost surely, 253244351 is an apocalyptic number.

53244351 is a deficient number, since it is larger than the sum of its proper divisors (25636209).

53244351 is a wasteful number, since it uses less digits than its factorization.

53244351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972022 (or 1972016 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 53244351 is about 7296.8726862951. The cubic root of 53244351 is about 376.2049560687.

Adding to 53244351 its reverse (15344235), we get a palindrome (68588586).

The spelling of 53244351 in words is "fifty-three million, two hundred forty-four thousand, three hundred fifty-one".

Divisors: 1 3 9 27 1972013 5916039 17748117 53244351