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68053777 = 116186707
BaseRepresentation
bin1000000111001…
…10101100010001
311202001111020021
410003212230101
5114410210102
610430343441
71454306341
oct403465421
9152044207
1068053777
11354618a0
121a95ab81
1311139a0c
149076d21
155e94137
hex40e6b11

68053777 has 4 divisors (see below), whose sum is σ = 74240496. Its totient is φ = 61867060.

The previous prime is 68053753. The next prime is 68053787. The reversal of 68053777 is 77735086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68053777 - 211 = 68051729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68053747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3093343 + ... + 3093364.

It is an arithmetic number, because the mean of its divisors is an integer number (18560124).

Almost surely, 268053777 is an apocalyptic number.

It is an amenable number.

68053777 is a deficient number, since it is larger than the sum of its proper divisors (6186719).

68053777 is a wasteful number, since it uses less digits than its factorization.

68053777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6186718.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 68053777 is about 8249.4713163936. The cubic root of 68053777 is about 408.2730794707.

The spelling of 68053777 in words is "sixty-eight million, fifty-three thousand, seven hundred seventy-seven".

Divisors: 1 11 6186707 68053777