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4142661487 = 79140937217
BaseRepresentation
bin1111011011101011…
…1111111101101111
3101200201011000012221
43312322333331233
531441010131422
61523023340211
7204442020166
oct36672777557
911621130187
104142661487
111836473988
12977451667
135103512b3
142b428c3dd
15193a553c7
hexf6ebff6f

4142661487 has 8 divisors (see below), whose sum is σ = 4198190400. Its totient is φ = 4087209984.

The previous prime is 4142661449. The next prime is 4142661499. The reversal of 4142661487 is 7841662414.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4142661487 - 27 = 4142661359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4142661437) 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, 92703 + ... + 129919.

It is an arithmetic number, because the mean of its divisors is an integer number (524773800).

Almost surely, 24142661487 is an apocalyptic number.

4142661487 is a deficient number, since it is larger than the sum of its proper divisors (55528913).

4142661487 is a wasteful number, since it uses less digits than its factorization.

4142661487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38705.

The product of its digits is 258048, while the sum is 43.

The square root of 4142661487 is about 64363.5105242093. The cubic root of 4142661487 is about 1606.0527879282.

The spelling of 4142661487 in words is "four billion, one hundred forty-two million, six hundred sixty-one thousand, four hundred eighty-seven".

Divisors: 1 79 1409 37217 111311 2940143 52438753 4142661487