Search a number
-
+
68326405 = 576132003
BaseRepresentation
bin1000001001010…
…01010000000101
311202120100012121
410010221100011
5114442421110
610440245541
71456523230
oct404512005
9152510177
1068326405
1135628704
121aa708b1
1311203b34
149108417
155ee9cda
hex4129405

68326405 has 16 divisors (see below), whose sum is σ = 95243904. Its totient is φ = 46082880.

The previous prime is 68326403. The next prime is 68326409. The reversal of 68326405 is 50462386.

It is a happy number.

It is not a de Polignac number, because 68326405 - 21 = 68326403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68326403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13867 + ... + 18136.

It is an arithmetic number, because the mean of its divisors is an integer number (5952744).

Almost surely, 268326405 is an apocalyptic number.

It is an amenable number.

68326405 is a deficient number, since it is larger than the sum of its proper divisors (26917499).

68326405 is a wasteful number, since it uses less digits than its factorization.

68326405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32076.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 68326405 is about 8265.9787684218. The cubic root of 68326405 is about 408.8175428540.

The spelling of 68326405 in words is "sixty-eight million, three hundred twenty-six thousand, four hundred five".

Divisors: 1 5 7 35 61 305 427 2135 32003 160015 224021 1120105 1952183 9760915 13665281 68326405