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61077 = 320359
BaseRepresentation
bin1110111010010101
310002210010
432322111
53423302
61150433
7343032
oct167225
9102703
1061077
1141985
122b419
1321a53
1418389
151316c
hexee95

61077 has 4 divisors (see below), whose sum is σ = 81440. Its totient is φ = 40716.

The previous prime is 61057. The next prime is 61091. The reversal of 61077 is 77016.

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 not a de Polignac number, because 61077 - 28 = 60821 is a prime.

It is a D-number.

It is a Duffinian number.

61077 is a lucky number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61007) 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, 10177 + ... + 10182.

It is an arithmetic number, because the mean of its divisors is an integer number (20360).

261077 is an apocalyptic number.

It is an amenable number.

61077 is a deficient number, since it is larger than the sum of its proper divisors (20363).

61077 is a wasteful number, since it uses less digits than its factorization.

61077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20362.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 61077 is about 247.1376134869. The cubic root of 61077 is about 39.3815282701.

The spelling of 61077 in words is "sixty-one thousand, seventy-seven".

Divisors: 1 3 20359 61077