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1307994 = 23277787
BaseRepresentation
bin100111111010101011010
32110110020020
410333111122
5313323434
644011310
714055252
oct4772532
92413206
101307994
11813796
12530b36
1336a47c
14260962
151ac849
hex13f55a

1307994 has 16 divisors (see below), whose sum is σ = 2628768. Its totient is φ = 433872.

The previous prime is 1307993. The next prime is 1308011. The reversal of 1307994 is 4997031.

It is a super-3 number, since 3×13079943 = 6713337949767791352, which contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1307993) 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, 1269 + ... + 2055.

It is an arithmetic number, because the mean of its divisors is an integer number (164298).

21307994 is an apocalyptic number.

1307994 is an abundant number, since it is smaller than the sum of its proper divisors (1320774).

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

1307994 is a wasteful number, since it uses less digits than its factorization.

1307994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 1307994 is about 1143.6756533213. The cubic root of 1307994 is about 109.3625388797.

The spelling of 1307994 in words is "one million, three hundred seven thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 277 554 787 831 1574 1662 2361 4722 217999 435998 653997 1307994