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63253345 = 5173891913
BaseRepresentation
bin1111000101001…
…0101101100001
311102000121021111
43301102231201
5112143101340
610135423321
71365434041
oct361225541
9142017244
1063253345
11327831a1
1219224b41
1310148a1c
148587721
155846aea
hex3c52b61

63253345 has 16 divisors (see below), whose sum is σ = 80617680. Its totient is φ = 47478784.

The previous prime is 63253343. The next prime is 63253363. The reversal of 63253345 is 54335236.

It is a happy number.

63253345 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 8 ways, for example, as 1347921 + 61905424 = 1161^2 + 7868^2 .

It is a cyclic number.

It is not a de Polignac number, because 63253345 - 21 = 63253343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63253343) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 32109 + ... + 34021.

It is an arithmetic number, because the mean of its divisors is an integer number (5038605).

Almost surely, 263253345 is an apocalyptic number.

It is an amenable number.

63253345 is a deficient number, since it is larger than the sum of its proper divisors (17364335).

63253345 is a wasteful number, since it uses less digits than its factorization.

63253345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324.

The product of its digits is 32400, while the sum is 31.

The square root of 63253345 is about 7953.1971558613. The cubic root of 63253345 is about 398.4383800416.

The spelling of 63253345 in words is "sixty-three million, two hundred fifty-three thousand, three hundred forty-five".

Divisors: 1 5 17 85 389 1913 1945 6613 9565 32521 33065 162605 744157 3720785 12650669 63253345