Search a number
-
+
1021061 = 29137257
BaseRepresentation
bin11111001010010000101
31220212122002
43321102011
5230133221
633515045
711451566
oct3712205
91825562
101021061
11638158
12412a85
132999a2
141c816d
1515280b
hexf9485

1021061 has 8 divisors (see below), whose sum is σ = 1068120. Its totient is φ = 974848.

The previous prime is 1021043. The next prime is 1021067. The reversal of 1021061 is 1601201.

1021061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 504100 + 516961 = 710^2 + 719^2 .

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 1021061 - 26 = 1020997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021067) 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, 3845 + ... + 4101.

It is an arithmetic number, because the mean of its divisors is an integer number (133515).

21021061 is an apocalyptic number.

It is an amenable number.

1021061 is a deficient number, since it is larger than the sum of its proper divisors (47059).

1021061 is a wasteful number, since it uses less digits than its factorization.

1021061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1021061 is about 1010.4756305820. The cubic root of 1021061 is about 100.6971616942.

Adding to 1021061 its reverse (1601201), we get a palindrome (2622262).

The spelling of 1021061 in words is "one million, twenty-one thousand, sixty-one".

Divisors: 1 29 137 257 3973 7453 35209 1021061