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280520040701 = 3173673122827
BaseRepresentation
bin1000001010100000100…
…11000010000011111101
3222211001220221120020002
410011100103002003331
514044001112300301
6332511422004045
726160356001155
oct4052023020375
9884056846202
10280520040701
11a8a7128258a
1246449716625
13205b7104b84
14d811d4b765
15746c41916b
hex41504c20fd

280520040701 has 8 divisors (see below), whose sum is σ = 289575362304. Its totient is φ = 271465112160.

The previous prime is 280520040667. The next prime is 280520040709. The reversal of 280520040701 is 107040025082.

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

It is a cyclic number.

It is not a de Polignac number, because 280520040701 - 234 = 263340171517 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 (280520040709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2222450 + ... + 2345276.

It is an arithmetic number, because the mean of its divisors is an integer number (36196920288).

Almost surely, 2280520040701 is an apocalyptic number.

It is an amenable number.

280520040701 is a deficient number, since it is larger than the sum of its proper divisors (9055321603).

280520040701 is a wasteful number, since it uses less digits than its factorization.

280520040701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196531.

The product of its (nonzero) digits is 4480, while the sum is 29.

Adding to 280520040701 its reverse (107040025082), we get a palindrome (387560065783).

The spelling of 280520040701 in words is "two hundred eighty billion, five hundred twenty million, forty thousand, seven hundred one".

Divisors: 1 31 73673 122827 2283863 3807637 9049033571 280520040701