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1023061 = 1378697
BaseRepresentation
bin11111001110001010101
31220222101011
43321301111
5230214221
633532221
711460454
oct3716125
91828334
101023061
11639706
12414071
1329a880
141c8b9b
151531e1
hexf9c55

1023061 has 4 divisors (see below), whose sum is σ = 1101772. Its totient is φ = 944352.

The previous prime is 1023047. The next prime is 1023067. The reversal of 1023061 is 1603201.

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 84100 + 938961 = 290^2 + 969^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023061 - 27 = 1022933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 78697 = 1023061 / (1 + 0 + 2 + 3 + 0 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023067) 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, 39336 + ... + 39361.

It is an arithmetic number, because the mean of its divisors is an integer number (275443).

21023061 is an apocalyptic number.

It is an amenable number.

1023061 is a deficient number, since it is larger than the sum of its proper divisors (78711).

1023061 is an equidigital number, since it uses as much as digits as its factorization.

1023061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78710.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1023061 is about 1011.4647794165. The cubic root of 1023061 is about 100.7628655627.

Adding to 1023061 its reverse (1603201), we get a palindrome (2626262).

The spelling of 1023061 in words is "one million, twenty-three thousand, sixty-one".

Divisors: 1 13 78697 1023061