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1381068 = 2232132227
BaseRepresentation
bin101010001001011001100
32121011110200
411101023030
5323143233
645333500
714511303
oct5211314
92534420
101381068
11863687
12567290
13394800
1427d43a
151c4313
hex1512cc

1381068 has 54 divisors (see below), whose sum is σ = 3796884. Its totient is φ = 423072.

The previous prime is 1381057. The next prime is 1381069. The reversal of 1381068 is 8601831.

It is not an unprimeable number, because it can be changed into a prime (1381069) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5971 + ... + 6197.

21381068 is an apocalyptic number.

1381068 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 1381068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1898442).

1381068 is an abundant number, since it is smaller than the sum of its proper divisors (2415816).

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

1381068 is a wasteful number, since it uses less digits than its factorization.

1381068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1381068 is about 1175.1884955189. The cubic root of 1381068 is about 111.3623415951.

Adding to 1381068 its reverse (8601831), we get a palindrome (9982899).

The spelling of 1381068 in words is "one million, three hundred eighty-one thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 169 227 234 338 454 468 507 676 681 908 1014 1362 1521 2028 2043 2724 2951 3042 4086 5902 6084 8172 8853 11804 17706 26559 35412 38363 53118 76726 106236 115089 153452 230178 345267 460356 690534 1381068