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280701 = 3231189
BaseRepresentation
bin1000100100001111101
3112021001100
41010201331
532440301
610003313
72246241
oct1044175
9467040
10280701
11181993
12116539
139a9c5
1474421
1558286
hex4487d

280701 has 6 divisors (see below), whose sum is σ = 405470. Its totient is φ = 187128.

The previous prime is 280699. The next prime is 280703. The reversal of 280701 is 107082.

It is an interprime number because it is at equal distance from previous prime (280699) and next prime (280703).

It can be written as a sum of positive squares in only one way, i.e., 181476 + 99225 = 426^2 + 315^2 .

It is not a de Polignac number, because 280701 - 21 = 280699 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 280701.

It is not an unprimeable number, because it can be changed into a prime (280703) 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, 15586 + ... + 15603.

2280701 is an apocalyptic number.

It is an amenable number.

280701 is a deficient number, since it is larger than the sum of its proper divisors (124769).

280701 is a wasteful number, since it uses less digits than its factorization.

280701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31195 (or 31192 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 280701 is about 529.8122308894. The cubic root of 280701 is about 65.4758763600.

Adding to 280701 its reverse (107082), we get a palindrome (387783).

The spelling of 280701 in words is "two hundred eighty thousand, seven hundred one".

Divisors: 1 3 9 31189 93567 280701