Search a number
-
+
678074 = 21971721
BaseRepresentation
bin10100101100010111010
31021110010212
42211202322
5133144244
622311122
75522615
oct2454272
91243125
10678074
114234a1
122884a2
131a9837
1413917c
15d5d9e
hexa58ba

678074 has 8 divisors (see below), whose sum is σ = 1022868. Its totient is φ = 337120.

The previous prime is 678061. The next prime is 678077. The reversal of 678074 is 470876.

678074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 552049 + 126025 = 743^2 + 355^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 678074.

It is not an unprimeable number, because it can be changed into a prime (678077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467 + ... + 1254.

2678074 is an apocalyptic number.

678074 is a deficient number, since it is larger than the sum of its proper divisors (344794).

678074 is a wasteful number, since it uses less digits than its factorization.

678074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 678074 is about 823.4524880040. The cubic root of 678074 is about 87.8534924469.

The spelling of 678074 in words is "six hundred seventy-eight thousand, seventy-four".

Divisors: 1 2 197 394 1721 3442 339037 678074