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68406306 = 2311401051
BaseRepresentation
bin1000001001111…
…00110000100010
311202201101210220
410010330300202
5120003000211
610442103510
71460305203
oct404746042
9152641726
1068406306
1135682741
121aaaab96
1311231307
1491295aa
156013806
hex413cc22

68406306 has 8 divisors (see below), whose sum is σ = 136812624. Its totient is φ = 22802100.

The previous prime is 68406287. The next prime is 68406319. The reversal of 68406306 is 60360486.

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

68406306 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5700520 + ... + 5700531.

It is an arithmetic number, because the mean of its divisors is an integer number (17101578).

Almost surely, 268406306 is an apocalyptic number.

68406306 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.

68406306 is a wasteful number, since it uses less digits than its factorization.

68406306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11401056.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 68406306 is about 8270.8104802371. The cubic root of 68406306 is about 408.9768380584.

The spelling of 68406306 in words is "sixty-eight million, four hundred six thousand, three hundred six".

Divisors: 1 2 3 6 11401051 22802102 34203153 68406306