Search a number
-
+
1228302 = 23268239
BaseRepresentation
bin100101011111000001110
32022101220200
410223320032
5303301202
642154330
713304025
oct4537016
92271820
101228302
11769929
124b29a6
1334010a
1423d8bc
15193e1c
hex12be0e

1228302 has 12 divisors (see below), whose sum is σ = 2661360. Its totient is φ = 409428.

The previous prime is 1228291. The next prime is 1228303. The reversal of 1228302 is 2038221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 68239 = 1228302 / (1 + 2 + 2 + 8 + 3 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34102 + ... + 34137.

It is an arithmetic number, because the mean of its divisors is an integer number (221780).

21228302 is an apocalyptic number.

1228302 is an abundant number, since it is smaller than the sum of its proper divisors (1433058).

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

1228302 is a wasteful number, since it uses less digits than its factorization.

1228302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68247 (or 68244 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1228302 is about 1108.2878687417. The cubic root of 1228302 is about 107.0948005437.

The spelling of 1228302 in words is "one million, two hundred twenty-eight thousand, three hundred two".

Divisors: 1 2 3 6 9 18 68239 136478 204717 409434 614151 1228302