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68079057 = 3234632131
BaseRepresentation
bin1000000111011…
…00110111010001
311202002202220120
410003230313101
5114412012212
610431100453
71454443134
oct403546721
9152082816
1068079057
1135479892
121a971729
1311148387
14908221b
155e9b88c
hex40ecdd1

68079057 has 16 divisors (see below), whose sum is σ = 94967808. Its totient is φ = 43298640.

The previous prime is 68079049. The next prime is 68079059. The reversal of 68079057 is 75097086.

It is not a de Polignac number, because 68079057 - 23 = 68079049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68079059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30882 + ... + 33012.

It is an arithmetic number, because the mean of its divisors is an integer number (5935488).

Almost surely, 268079057 is an apocalyptic number.

It is an amenable number.

68079057 is a deficient number, since it is larger than the sum of its proper divisors (26888751).

68079057 is a wasteful number, since it uses less digits than its factorization.

68079057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 68079057 is about 8251.0033935274. The cubic root of 68079057 is about 408.3236270727.

The spelling of 68079057 in words is "sixty-eight million, seventy-nine thousand, fifty-seven".

Divisors: 1 3 23 69 463 1389 2131 6393 10649 31947 49013 147039 986653 2959959 22693019 68079057