Search a number
-
+
1041228 = 223331311
BaseRepresentation
bin11111110001101001100
31221220022000
43332031030
5231304403
634152300
711564436
oct3761514
91856260
101041228
11651321
12422690
132a5c16
141d1656
151587a3
hexfe34c

1041228 has 48 divisors (see below), whose sum is σ = 2795520. Its totient is φ = 334800.

The previous prime is 1041223. The next prime is 1041239. The reversal of 1041228 is 8221401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1041228.

It is not an unprimeable number, because it can be changed into a prime (1041221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3193 + ... + 3503.

It is an arithmetic number, because the mean of its divisors is an integer number (58240).

21041228 is an apocalyptic number.

1041228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1041228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1397760).

1041228 is an abundant number, since it is smaller than the sum of its proper divisors (1754292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1041228 is a wasteful number, since it uses less digits than its factorization.

1041228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1041228 is about 1020.4058016299. The cubic root of 1041228 is about 101.3558016122.

Adding to 1041228 its reverse (8221401), we get a palindrome (9262629).

It can be divided in two parts, 10412 and 28, that added together give a triangular number (10440 = T144).

The spelling of 1041228 in words is "one million, forty-one thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 31 36 54 62 93 108 124 186 279 311 372 558 622 837 933 1116 1244 1674 1866 2799 3348 3732 5598 8397 9641 11196 16794 19282 28923 33588 38564 57846 86769 115692 173538 260307 347076 520614 1041228