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6129085 = 51225817
BaseRepresentation
bin10111011000010110111101
3102112101112011
4113120112331
53032112320
6335211221
7103045024
oct27302675
912471464
106129085
113506966
122076b11
1313679a1
14b578bb
1581105a
hex5d85bd

6129085 has 4 divisors (see below), whose sum is σ = 7354908. Its totient is φ = 4903264.

The previous prime is 6129083. The next prime is 6129089. The reversal of 6129085 is 5809216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2647129 + 3481956 = 1627^2 + 1866^2 .

It is a cyclic number.

It is not a de Polignac number, because 6129085 - 21 = 6129083 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6129083) 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, 612904 + ... + 612913.

It is an arithmetic number, because the mean of its divisors is an integer number (1838727).

Almost surely, 26129085 is an apocalyptic number.

It is an amenable number.

6129085 is a deficient number, since it is larger than the sum of its proper divisors (1225823).

6129085 is a wasteful number, since it uses less digits than its factorization.

6129085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225822.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 6129085 is about 2475.6988912224. The cubic root of 6129085 is about 183.0059520096.

The spelling of 6129085 in words is "six million, one hundred twenty-nine thousand, eighty-five".

Divisors: 1 5 1225817 6129085