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63663141 = 321221047
BaseRepresentation
bin1111001011011…
…0110000100101
311102210102102010
43302312300211
5112244210031
610152304433
71402061553
oct362666045
9142712363
1063663141
1132a33073
12193a2119
13102603c9
148652bd3
1558c8246
hex3cb6c25

63663141 has 4 divisors (see below), whose sum is σ = 84884192. Its totient is φ = 42442092.

The previous prime is 63663133. The next prime is 63663143. The reversal of 63663141 is 14136636.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 63663141 - 23 = 63663133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63663099 and 63663108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63663143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10610521 + ... + 10610526.

It is an arithmetic number, because the mean of its divisors is an integer number (21221048).

Almost surely, 263663141 is an apocalyptic number.

It is an amenable number.

63663141 is a deficient number, since it is larger than the sum of its proper divisors (21221051).

63663141 is a wasteful number, since it uses less digits than its factorization.

63663141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21221050.

The product of its digits is 7776, while the sum is 30.

The square root of 63663141 is about 7978.9185357415. The cubic root of 63663141 is about 399.2969755320.

Adding to 63663141 its reverse (14136636), we get a palindrome (77799777).

The spelling of 63663141 in words is "sixty-three million, six hundred sixty-three thousand, one hundred forty-one".

Divisors: 1 3 21221047 63663141