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6021087121 = 72122879329
BaseRepresentation
bin1011001101110001…
…00111111110010001
3120112121201220202201
411212320213332101
544312344241441
62433244443201
7302131252600
oct54670477621
916477656681
106021087121
11260a823965
121200549501
1374c56cc5a
1441193ba37
15253900c31
hex166e27f91

6021087121 has 6 divisors (see below), whose sum is σ = 7004121810. Its totient is φ = 5160931776.

The previous prime is 6021087119. The next prime is 6021087157. The reversal of 6021087121 is 1217801206.

It can be written as a sum of positive squares in only one way, i.e., 4497043600 + 1524043521 = 67060^2 + 39039^2 .

It is not a de Polignac number, because 6021087121 - 21 = 6021087119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6021087121.

It is not an unprimeable number, because it can be changed into a prime (6021087161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61439616 + ... + 61439713.

It is an arithmetic number, because the mean of its divisors is an integer number (1167353635).

Almost surely, 26021087121 is an apocalyptic number.

It is an amenable number.

6021087121 is a deficient number, since it is larger than the sum of its proper divisors (983034689).

6021087121 is a wasteful number, since it uses less digits than its factorization.

6021087121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122879343 (or 122879336 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 6021087121 is about 77595.6643183110. The cubic root of 6021087121 is about 1819.2468728125.

Adding to 6021087121 its reverse (1217801206), we get a palindrome (7238888327).

The spelling of 6021087121 in words is "six billion, twenty-one million, eighty-seven thousand, one hundred twenty-one".

Divisors: 1 7 49 122879329 860155303 6021087121