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1307868 = 223731493
BaseRepresentation
bin100111111010011011100
32110110001120
410333103130
5313322433
644010540
714055012
oct4772334
92413046
101307868
11813691
12530a50
1336a3b3
142608b2
151ac7b3
hex13f4dc

1307868 has 24 divisors (see below), whose sum is σ = 3095568. Its totient is φ = 429696.

The previous prime is 1307863. The next prime is 1307893. The reversal of 1307868 is 8687031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130 + ... + 1622.

It is an arithmetic number, because the mean of its divisors is an integer number (128982).

21307868 is an apocalyptic number.

It is an amenable number.

1307868 is an abundant number, since it is smaller than the sum of its proper divisors (1787700).

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

1307868 is a wasteful number, since it uses less digits than its factorization.

1307868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573 (or 1571 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1307868 is about 1143.6205664468. The cubic root of 1307868 is about 109.3590271096.

The spelling of 1307868 in words is "one million, three hundred seven thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 73 146 219 292 438 876 1493 2986 4479 5972 8958 17916 108989 217978 326967 435956 653934 1307868