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61682527141 = 219292812829
BaseRepresentation
bin111001011100100100…
…001010101110100101
312220012202120001002021
4321130210022232211
52002311211332031
644200410343141
74312356554434
oct713444125645
9186182501067
1061682527141
11241831a6664
12bb5542aab1
135a801c9691
142db210b11b
151910304511
hexe5c90aba5

61682527141 has 4 divisors (see below), whose sum is σ = 61685361900. Its totient is φ = 61679692384.

The previous prime is 61682527117. The next prime is 61682527163. The reversal of 61682527141 is 14172528616.

61682527141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 49377284100 + 12305243041 = 222210^2 + 110929^2 .

It is a cyclic number.

It is not a de Polignac number, because 61682527141 - 27 = 61682527013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61682527241) 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, 1384486 + ... + 1428343.

It is an arithmetic number, because the mean of its divisors is an integer number (15421340475).

Almost surely, 261682527141 is an apocalyptic number.

It is an amenable number.

61682527141 is a deficient number, since it is larger than the sum of its proper divisors (2834759).

61682527141 is a wasteful number, since it uses less digits than its factorization.

61682527141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834758.

The product of its digits is 161280, while the sum is 43.

The spelling of 61682527141 in words is "sixty-one billion, six hundred eighty-two million, five hundred twenty-seven thousand, one hundred forty-one".

Divisors: 1 21929 2812829 61682527141