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4147087 = 72931659
BaseRepresentation
bin1111110100011110001111
321210200201211
433310132033
52030201322
6224515251
750151430
oct17643617
97720654
104147087
11238284a
12147bb27
13b227c9
1479d487
1556db77
hex3f478f

4147087 has 16 divisors (see below), whose sum is σ = 5068800. Its totient is φ = 3316320.

The previous prime is 4147081. The next prime is 4147093. The reversal of 4147087 is 7807414.

It is an interprime number because it is at equal distance from previous prime (4147081) and next prime (4147093).

It is not a de Polignac number, because 4147087 - 23 = 4147079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

4147087 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4147081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5964 + ... + 6622.

It is an arithmetic number, because the mean of its divisors is an integer number (316800).

Almost surely, 24147087 is an apocalyptic number.

4147087 is a deficient number, since it is larger than the sum of its proper divisors (921713).

4147087 is a wasteful number, since it uses less digits than its factorization.

4147087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 4147087 is about 2036.4397855080. The cubic root of 4147087 is about 160.6624487873.

The spelling of 4147087 in words is "four million, one hundred forty-seven thousand, eighty-seven".

Divisors: 1 7 29 31 203 217 659 899 4613 6293 19111 20429 133777 143003 592441 4147087