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678373423 = 713172915121
BaseRepresentation
bin101000011011110…
…010100000101111
31202021110221101121
4220123302200233
52342130422143
6151151521411
722545036040
oct5033624057
91667427347
10678373423
11318a18aa2
1216b229267
13aa7097c0
14661488c7
153e84e7ed
hex286f282f

678373423 has 32 divisors (see below), whose sum is σ = 914578560. Its totient is φ = 487710720.

The previous prime is 678373391. The next prime is 678373441. The reversal of 678373423 is 324373876.

678373423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 678373423 - 25 = 678373391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 678373423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678373453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37303 + ... + 52423.

It is an arithmetic number, because the mean of its divisors is an integer number (28580580).

Almost surely, 2678373423 is an apocalyptic number.

678373423 is a deficient number, since it is larger than the sum of its proper divisors (236205137).

678373423 is a wasteful number, since it uses less digits than its factorization.

678373423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15187.

The product of its digits is 508032, while the sum is 43.

The square root of 678373423 is about 26045.6027574714. The cubic root of 678373423 is about 878.6642195276.

The spelling of 678373423 in words is "six hundred seventy-eight million, three hundred seventy-three thousand, four hundred twenty-three".

Divisors: 1 7 13 17 29 91 119 203 221 377 493 1547 2639 3451 6409 15121 44863 105847 196573 257057 438509 1376011 1799399 3069563 3341741 5700617 7454653 23392187 39904319 52182571 96910489 678373423