Search a number
-
+
1243028 = 221911627
BaseRepresentation
bin100101111011110010100
32100011010002
410233132110
5304234103
642350432
713364663
oct4573624
92304102
101243028
117799a6
124bb418
13346a27
14244dda
15198488
hex12f794

1243028 has 12 divisors (see below), whose sum is σ = 2188032. Its totient is φ = 617880.

The previous prime is 1243013. The next prime is 1243093. The reversal of 1243028 is 8203421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50 + ... + 1577.

It is an arithmetic number, because the mean of its divisors is an integer number (182336).

21243028 is an apocalyptic number.

It is an amenable number.

1243028 is a deficient number, since it is larger than the sum of its proper divisors (945004).

1243028 is a wasteful number, since it uses less digits than its factorization.

1243028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822 (or 1820 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1243028 is about 1114.9116556930. The cubic root of 1243028 is about 107.5210847411.

Adding to 1243028 its reverse (8203421), we get a palindrome (9446449).

The spelling of 1243028 in words is "one million, two hundred forty-three thousand, twenty-eight".

Divisors: 1 2 4 191 382 764 1627 3254 6508 310757 621514 1243028