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280043114 = 21310770889
BaseRepresentation
bin10000101100010…
…001111001101010
3201111221122221012
4100230101321222
51033142334424
643442143522
76640220141
oct2054217152
9644848835
10280043114
1113409359a
1279951ba2
13460311b0
142929a758
15198bab0e
hex10b11e6a

280043114 has 8 divisors (see below), whose sum is σ = 452377380. Its totient is φ = 129250656.

The previous prime is 280043083. The next prime is 280043117. The reversal of 280043114 is 411340082.

It can be written as a sum of positive squares in 2 ways, for example, as 246019225 + 34023889 = 15685^2 + 5833^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 280043114.

It is not an unprimeable number, because it can be changed into a prime (280043117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5385419 + ... + 5385470.

Almost surely, 2280043114 is an apocalyptic number.

280043114 is a deficient number, since it is larger than the sum of its proper divisors (172334266).

280043114 is a wasteful number, since it uses less digits than its factorization.

280043114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10770904.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 280043114 is about 16734.4887582501. The cubic root of 280043114 is about 654.2468385889.

Adding to 280043114 its reverse (411340082), we get a palindrome (691383196).

The spelling of 280043114 in words is "two hundred eighty million, forty-three thousand, one hundred fourteen".

Divisors: 1 2 13 26 10770889 21541778 140021557 280043114