Search a number
-
+
68434079 = 776912713
BaseRepresentation
bin1000001010000…
…11100010011111
311202202210220112
410011003202133
5120004342304
610442440235
71460452160
oct405034237
9152683815
1068434079
11356a159a
121ab0307b
1311240b4c
149135767
15601bb6e
hex414389f

68434079 has 8 divisors (see below), whose sum is σ = 78318240. Its totient is φ = 58576896.

The previous prime is 68434049. The next prime is 68434087. The reversal of 68434079 is 97043486.

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

It is not a de Polignac number, because 68434079 - 220 = 67385503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68434049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974 + ... + 11739.

It is an arithmetic number, because the mean of its divisors is an integer number (9789780).

Almost surely, 268434079 is an apocalyptic number.

68434079 is a deficient number, since it is larger than the sum of its proper divisors (9884161).

68434079 is a wasteful number, since it uses less digits than its factorization.

68434079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13489.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 68434079 is about 8272.4892867867. The cubic root of 68434079 is about 409.0321788476.

The spelling of 68434079 in words is "sixty-eight million, four hundred thirty-four thousand, seventy-nine".

Divisors: 1 7 769 5383 12713 88991 9776297 68434079