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63103331 = 163387137
BaseRepresentation
bin1111000010111…
…0000101100011
311101201222111102
43300232011203
5112123301311
610132305015
71364240504
oct360560543
9141658442
1063103331
1132690515
121917216b
13100c5665
148548bab
15581743b
hex3c2e163

63103331 has 4 divisors (see below), whose sum is σ = 63490632. Its totient is φ = 62716032.

The previous prime is 63103301. The next prime is 63103343. The reversal of 63103331 is 13330136.

63103331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63103331 - 222 = 58909027 is a prime.

It is a super-2 number, since 2×631033312 = 7964060766591122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63103301) 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 3 ways as a sum of consecutive naturals, for example, 193406 + ... + 193731.

It is an arithmetic number, because the mean of its divisors is an integer number (15872658).

Almost surely, 263103331 is an apocalyptic number.

63103331 is a deficient number, since it is larger than the sum of its proper divisors (387301).

63103331 is a wasteful number, since it uses less digits than its factorization.

63103331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387300.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 63103331 is about 7943.7605074675. The cubic root of 63103331 is about 398.1231469132.

Adding to 63103331 its reverse (13330136), we get a palindrome (76433467).

The spelling of 63103331 in words is "sixty-three million, one hundred three thousand, three hundred thirty-one".

Divisors: 1 163 387137 63103331