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63077161 = 721287289
BaseRepresentation
bin1111000010011…
…1101100101001
311101200122121011
43300213230221
5112121432121
610131543521
71364101300
oct360475451
9141618534
1063077161
1132672894
121915aba1
13100b6784
14853d437
15580e7e1
hex3c27b29

63077161 has 6 divisors (see below), whose sum is σ = 73375530. Its totient is φ = 54066096.

The previous prime is 63077143. The next prime is 63077197. The reversal of 63077161 is 16177036.

It can be written as a sum of positive squares in only one way, i.e., 62900761 + 176400 = 7931^2 + 420^2 .

It is not a de Polignac number, because 63077161 - 211 = 63075113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63077561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 643596 + ... + 643693.

It is an arithmetic number, because the mean of its divisors is an integer number (12229255).

Almost surely, 263077161 is an apocalyptic number.

It is an amenable number.

63077161 is a deficient number, since it is larger than the sum of its proper divisors (10298369).

63077161 is a wasteful number, since it uses less digits than its factorization.

63077161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287303 (or 1287296 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 63077161 is about 7942.1131319064. The cubic root of 63077161 is about 398.0681032084.

The spelling of 63077161 in words is "sixty-three million, seventy-seven thousand, one hundred sixty-one".

Divisors: 1 7 49 1287289 9011023 63077161