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68677973 = 713754703
BaseRepresentation
bin1000001011111…
…11000101010101
311210020012110122
410011333011111
5120040143343
610452001325
71462516220
oct405770525
9153205418
1068677973
1135848861
121b000245
13112c7b70
14919a5b7
156069068
hex417f155

68677973 has 8 divisors (see below), whose sum is σ = 84526848. Its totient is φ = 54338544.

The previous prime is 68677949. The next prime is 68677981. The reversal of 68677973 is 37977686.

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

It is not a de Polignac number, because 68677973 - 28 = 68677717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68677933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377261 + ... + 377442.

It is an arithmetic number, because the mean of its divisors is an integer number (10565856).

Almost surely, 268677973 is an apocalyptic number.

It is an amenable number.

68677973 is a deficient number, since it is larger than the sum of its proper divisors (15848875).

68677973 is a wasteful number, since it uses less digits than its factorization.

68677973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754723.

The product of its digits is 2667168, while the sum is 53.

The square root of 68677973 is about 8287.2174461637. The cubic root of 68677973 is about 409.5175228788.

The spelling of 68677973 in words is "sixty-eight million, six hundred seventy-seven thousand, nine hundred seventy-three".

Divisors: 1 7 13 91 754703 5282921 9811139 68677973