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1293306 = 23725383
BaseRepresentation
bin100111011101111111010
32102201002020
410323233322
5312341211
643415310
713664400
oct4735772
92381066
101293306
11803753
12524536
13363891
14259470
151a8306
hex13bbfa

1293306 has 48 divisors (see below), whose sum is σ = 3102624. Its totient is φ = 358176.

The previous prime is 1293287. The next prime is 1293307. The reversal of 1293306 is 6033921.

It is not an unprimeable number, because it can be changed into a prime (1293307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15541 + ... + 15623.

It is an arithmetic number, because the mean of its divisors is an integer number (64638).

21293306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1293306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1551312).

1293306 is an abundant number, since it is smaller than the sum of its proper divisors (1809318).

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

1293306 is a wasteful number, since it uses less digits than its factorization.

1293306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 1293306 is about 1137.2361232391. The cubic root of 1293306 is about 108.9516380580.

The spelling of 1293306 in words is "one million, two hundred ninety-three thousand, three hundred six".

Divisors: 1 2 3 6 7 14 21 42 49 53 83 98 106 147 159 166 249 294 318 371 498 581 742 1113 1162 1743 2226 2597 3486 4067 4399 5194 7791 8134 8798 12201 13197 15582 24402 26394 30793 61586 92379 184758 215551 431102 646653 1293306