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394680430 = 25291360967
BaseRepresentation
bin10111100001100…
…101100001101110
31000111122211202201
4113201211201232
51302014233210
6103055212114
712531504544
oct2741454156
91014584681
10394680430
11192872281
12b021703a
13639cb221
143a5bbd94
15249b253a
hex1786586e

394680430 has 16 divisors (see below), whose sum is σ = 734922720. Its totient is φ = 152428192.

The previous prime is 394680421. The next prime is 394680457. The reversal of 394680430 is 34086493.

It is a self number, because there is not a number n which added to its sum of digits gives 394680430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680194 + ... + 680773.

It is an arithmetic number, because the mean of its divisors is an integer number (45932670).

Almost surely, 2394680430 is an apocalyptic number.

394680430 is a deficient number, since it is larger than the sum of its proper divisors (340242290).

394680430 is a wasteful number, since it uses less digits than its factorization.

394680430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361003.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 394680430 is about 19866.5656317341. The cubic root of 394680430 is about 733.5254687098.

The spelling of 394680430 in words is "three hundred ninety-four million, six hundred eighty thousand, four hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 1360967 2721934 6804835 13609670 39468043 78936086 197340215 394680430