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68320932 = 2235693411
BaseRepresentation
bin1000001001001…
…11111010100100
311202120001200220
410010213322210
5114442232212
610440204340
71456501251
oct404477244
9152501626
1068320932
1135624589
121aa696b0
13112014b4
149106428
155ee838c
hex4127ea4

68320932 has 12 divisors (see below), whose sum is σ = 159415536. Its totient is φ = 22773640.

The previous prime is 68320927. The next prime is 68320933. The reversal of 68320932 is 23902386.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 68320893 and 68320902.

It is not an unprimeable number, because it can be changed into a prime (68320933) 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, 2846694 + ... + 2846717.

It is an arithmetic number, because the mean of its divisors is an integer number (13284628).

Almost surely, 268320932 is an apocalyptic number.

It is an amenable number.

68320932 is an abundant number, since it is smaller than the sum of its proper divisors (91094604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68320932 is a wasteful number, since it uses less digits than its factorization.

68320932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5693418 (or 5693416 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 68320932 is about 8265.6477060180. The cubic root of 68320932 is about 408.8066270246.

The spelling of 68320932 in words is "sixty-eight million, three hundred twenty thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 12 5693411 11386822 17080233 22773644 34160466 68320932