Search a number
-
+
1283238 = 232116481
BaseRepresentation
bin100111001010010100110
32102012021100
410321102212
5312030423
643300530
713623135
oct4712246
92365240
101283238
117a7130
1251a746
1335c118
1425591c
151a5343
hex1394a6

1283238 has 24 divisors (see below), whose sum is σ = 3033576. Its totient is φ = 388800.

The previous prime is 1283237. The next prime is 1283297. The reversal of 1283238 is 8323821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3043 + ... + 3438.

It is an arithmetic number, because the mean of its divisors is an integer number (126399).

21283238 is an apocalyptic number.

1283238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1283238 is an abundant number, since it is smaller than the sum of its proper divisors (1750338).

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

1283238 is a wasteful number, since it uses less digits than its factorization.

1283238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500 (or 6497 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 1283238 is about 1132.8009533894. The cubic root of 1283238 is about 108.6681826144.

It can be divided in two parts, 1283 and 238, that added together give a square (1521 = 392).

The spelling of 1283238 in words is "one million, two hundred eighty-three thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 6481 12962 19443 38886 58329 71291 116658 142582 213873 427746 641619 1283238