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68086506 = 2311347751
BaseRepresentation
bin1000000111011…
…10101011101010
311202010011010110
410003232223222
5114412232011
610431155150
71454503635
oct403565352
9152104113
1068086506
1135484444
121a975ab6
131114b897
149084c1c
155e9dba6
hex40eeaea

68086506 has 8 divisors (see below), whose sum is σ = 136173024. Its totient is φ = 22695500.

The previous prime is 68086483. The next prime is 68086507. The reversal of 68086506 is 60568086.

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

68086506 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (68086507) 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, 5673870 + ... + 5673881.

It is an arithmetic number, because the mean of its divisors is an integer number (17021628).

Almost surely, 268086506 is an apocalyptic number.

68086506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68086506 is a wasteful number, since it uses less digits than its factorization.

68086506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11347756.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 68086506 is about 8251.4547808250. The cubic root of 68086506 is about 408.3385190327.

The spelling of 68086506 in words is "sixty-eight million, eighty-six thousand, five hundred six".

Divisors: 1 2 3 6 11347751 22695502 34043253 68086506