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62716687489 = 2504332
BaseRepresentation
bin111010011010001101…
…001011010010000001
312222212211111211101101
4322122031023102001
52011420432444424
644451152134401
74350115022251
oct723215132201
9188784454341
1062716687489
1124663a31635
12101a3837401
135bb6537391
14306d5cb961
151970ed2344
hexe9a34b481

62716687489 has 3 divisors (see below), whose sum is σ = 62716937923. Its totient is φ = 62716437056.

The previous prime is 62716687483. The next prime is 62716687499. The reversal of 62716687489 is 98478661726.

The square root of 62716687489 is 250433.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 22793450625 + 39923236864 = 150975^2 + 199808^2 .

It is not a de Polignac number, because 62716687489 - 27 = 62716687361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 62716687489.

It is not an unprimeable number, because it can be changed into a prime (62716687483) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 125217 + ... + 375649.

Almost surely, 262716687489 is an apocalyptic number.

62716687489 is the 250433-rd square number.

62716687489 is the 125217-th centered octagonal number.

It is an amenable number.

62716687489 is a deficient number, since it is larger than the sum of its proper divisors (250434).

62716687489 is an frugal number, since it uses more digits than its factorization.

62716687489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500866 (or 250433 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 64.

Multiplying 62716687489 by its sum of digits (64), we get a square (4013867999296 = 20034642).

The spelling of 62716687489 in words is "sixty-two billion, seven hundred sixteen million, six hundred eighty-seven thousand, four hundred eighty-nine".

Divisors: 1 250433 62716687489