Search a number
-
+
1226984 = 231173191
BaseRepresentation
bin100101011100011101000
32022100002212
410223203220
5303230414
642144252
713300133
oct4534350
92270085
101226984
11768940
124b2088
1333c635
1423d21a
1519383e
hex12b8e8

1226984 has 32 divisors (see below), whose sum is σ = 2557440. Its totient is φ = 547200.

The previous prime is 1226983. The next prime is 1226993. The reversal of 1226984 is 4896221.

It is a self number, because there is not a number n which added to its sum of digits gives 1226984.

It is not an unprimeable number, because it can be changed into a prime (1226983) 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, 6329 + ... + 6519.

It is an arithmetic number, because the mean of its divisors is an integer number (79920).

21226984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1278720).

1226984 is an abundant number, since it is smaller than the sum of its proper divisors (1330456).

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

1226984 is a wasteful number, since it uses less digits than its factorization.

1226984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 277 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 1226984 is about 1107.6930982903. The cubic root of 1226984 is about 107.0564816657.

The spelling of 1226984 in words is "one million, two hundred twenty-six thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 11 22 44 73 88 146 191 292 382 584 764 803 1528 1606 2101 3212 4202 6424 8404 13943 16808 27886 55772 111544 153373 306746 613492 1226984