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68177059 = 431585513
BaseRepresentation
bin1000001000001…
…00110010100011
311202021202100021
410010010302203
5114423131214
610433134311
71455331636
oct404046243
9152252307
1068177059
1135536485
121a9ba397
1311180b72
1490a9c1d
155eba924
hex4104ca3

68177059 has 4 divisors (see below), whose sum is σ = 69762616. Its totient is φ = 66591504.

The previous prime is 68177047. The next prime is 68177069. The reversal of 68177059 is 95077186.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68177059 is a prime.

It is a super-2 number, since 2×681770592 = 9296222747778962, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 1585513 = 68177059 / (6 + 8 + 1 + 7 + 7 + 0 + 5 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68177009) 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, 792714 + ... + 792799.

It is an arithmetic number, because the mean of its divisors is an integer number (17440654).

Almost surely, 268177059 is an apocalyptic number.

68177059 is a deficient number, since it is larger than the sum of its proper divisors (1585557).

68177059 is a wasteful number, since it uses less digits than its factorization.

68177059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585556.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 68177059 is about 8256.9400506483. The cubic root of 68177059 is about 408.5194648115.

The spelling of 68177059 in words is "sixty-eight million, one hundred seventy-seven thousand, fifty-nine".

Divisors: 1 43 1585513 68177059