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68612067 = 3216214703
BaseRepresentation
bin1000001011011…
…10111111100011
311210002212001200
410011232333203
5120031041232
610450332243
71462123116
oct405567743
9153085050
1068612067
1135803297
121ab8a083
13112a3b74
14918057d
15605477c
hex416efe3

68612067 has 12 divisors (see below), whose sum is σ = 99188544. Its totient is φ = 45703440.

The previous prime is 68612039. The next prime is 68612081. The reversal of 68612067 is 76021686.

It is a happy number.

It is not a de Polignac number, because 68612067 - 210 = 68611043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68612267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12238 + ... + 16940.

It is an arithmetic number, because the mean of its divisors is an integer number (8265712).

Almost surely, 268612067 is an apocalyptic number.

68612067 is a deficient number, since it is larger than the sum of its proper divisors (30576477).

68612067 is a wasteful number, since it uses less digits than its factorization.

68612067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6330 (or 6327 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 68612067 is about 8283.2401269069. The cubic root of 68612067 is about 409.3864847467.

The spelling of 68612067 in words is "sixty-eight million, six hundred twelve thousand, sixty-seven".

Divisors: 1 3 9 1621 4703 4863 14109 14589 42327 7623563 22870689 68612067