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280716713 = 2591108343
BaseRepresentation
bin10000101110110…
…110010110101001
3201120012212221022
4100232312112221
51033330413323
643504422225
76646024034
oct2056662651
9646185838
10280716713
11134503692
127a017975
1346208984
14293d401b
15199a04c8
hex10bb65a9

280716713 has 4 divisors (see below), whose sum is σ = 280827648. Its totient is φ = 280605780.

The previous prime is 280716691. The next prime is 280716727. The reversal of 280716713 is 317617082.

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 280716713 - 26 = 280716649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280716313) 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, 51581 + ... + 56762.

It is an arithmetic number, because the mean of its divisors is an integer number (70206912).

Almost surely, 2280716713 is an apocalyptic number.

It is an amenable number.

280716713 is a deficient number, since it is larger than the sum of its proper divisors (110935).

280716713 is a wasteful number, since it uses less digits than its factorization.

280716713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110934.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 280716713 is about 16754.6027407396. The cubic root of 280716713 is about 654.7709806717.

The spelling of 280716713 in words is "two hundred eighty million, seven hundred sixteen thousand, seven hundred thirteen".

Divisors: 1 2591 108343 280716713