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1306712 = 231131479
BaseRepresentation
bin100111111000001011000
32110101110202
410333001120
5313303322
644001332
714051441
oct4770130
92411422
101306712
11812830
12530248
13369a04
142602c8
151ac292
hex13f058

1306712 has 32 divisors (see below), whose sum is σ = 2764800. Its totient is φ = 573600.

The previous prime is 1306693. The next prime is 1306717. The reversal of 1306712 is 2176031.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306717) 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, 2489 + ... + 2967.

It is an arithmetic number, because the mean of its divisors is an integer number (86400).

21306712 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 1306712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1382400).

1306712 is an abundant number, since it is smaller than the sum of its proper divisors (1458088).

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

1306712 is a wasteful number, since it uses less digits than its factorization.

1306712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 1306712 is about 1143.1150423295. The cubic root of 1306712 is about 109.3267974809.

The spelling of 1306712 in words is "one million, three hundred six thousand, seven hundred twelve".

Divisors: 1 2 4 8 11 22 31 44 62 88 124 248 341 479 682 958 1364 1916 2728 3832 5269 10538 14849 21076 29698 42152 59396 118792 163339 326678 653356 1306712