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1307412 = 2232231579
BaseRepresentation
bin100111111001100010100
32110102102200
410333030110
5313314122
644004500
714053461
oct4771424
92412380
101307412
11813307
12530730
1336a122
14260668
151ac5ac
hex13f314

1307412 has 36 divisors (see below), whose sum is σ = 3450720. Its totient is φ = 416592.

The previous prime is 1307393. The next prime is 1307417. The reversal of 1307412 is 2147031.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13074122 = 3418652275488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307417) 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 11 ways as a sum of consecutive naturals, for example, 39 + ... + 1617.

21307412 is an apocalyptic number.

1307412 is a gapful number since it is divisible by the number (12) 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 1307412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1725360).

1307412 is an abundant number, since it is smaller than the sum of its proper divisors (2143308).

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

1307412 is a wasteful number, since it uses less digits than its factorization.

1307412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612 (or 1607 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1307412 is about 1143.4211822421. The cubic root of 1307412 is about 109.3463159611.

The spelling of 1307412 in words is "one million, three hundred seven thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 138 207 276 414 828 1579 3158 4737 6316 9474 14211 18948 28422 36317 56844 72634 108951 145268 217902 326853 435804 653706 1307412