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68580337 = 79797191
BaseRepresentation
bin1000001011001…
…11001111110001
311210001020112111
410011213033301
5120024032322
610445525321
71461631450
oct405471761
9153036474
1068580337
1135791471
121ab73841
13112925a7
149172b97
15604a177
hex41673f1

68580337 has 4 divisors (see below), whose sum is σ = 78377536. Its totient is φ = 58783140.

The previous prime is 68580307. The next prime is 68580341. The reversal of 68580337 is 73308586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68580337 - 27 = 68580209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68580337.

It is not an unprimeable number, because it can be changed into a prime (68580307) 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, 4898589 + ... + 4898602.

It is an arithmetic number, because the mean of its divisors is an integer number (19594384).

Almost surely, 268580337 is an apocalyptic number.

It is an amenable number.

68580337 is a deficient number, since it is larger than the sum of its proper divisors (9797199).

68580337 is an equidigital number, since it uses as much as digits as its factorization.

68580337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9797198.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 68580337 is about 8281.3245921169. The cubic root of 68580337 is about 409.3233673940.

The spelling of 68580337 in words is "sixty-eight million, five hundred eighty thousand, three hundred thirty-seven".

Divisors: 1 7 9797191 68580337