Search a number
-
+
64141663 = 1719349569
BaseRepresentation
bin1111010010101…
…1100101011111
311110200201211011
43310223211133
5112410013123
610210440051
71406123635
oct364534537
9143621734
1064141663
113322a643
1219593027
131039a161
148739355
15596ee0d
hex3d2b95f

64141663 has 16 divisors (see below), whose sum is σ = 71820000. Its totient is φ = 56927232.

The previous prime is 64141633. The next prime is 64141703. The reversal of 64141663 is 36614146.

It is a cyclic number.

It is not a de Polignac number, because 64141663 - 221 = 62044511 is a prime.

It is a super-2 number, since 2×641416632 = 8228305864811138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64141633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112443 + ... + 113011.

It is an arithmetic number, because the mean of its divisors is an integer number (4488750).

Almost surely, 264141663 is an apocalyptic number.

64141663 is a deficient number, since it is larger than the sum of its proper divisors (7678337).

64141663 is a wasteful number, since it uses less digits than its factorization.

64141663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954.

The product of its digits is 10368, while the sum is 31.

The square root of 64141663 is about 8008.8490434019. The cubic root of 64141663 is about 400.2949137612.

The spelling of 64141663 in words is "sixty-four million, one hundred forty-one thousand, six hundred sixty-three".

Divisors: 1 17 19 323 349 569 5933 6631 9673 10811 112727 183787 198581 3375877 3773039 64141663